199440720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:338

約数の個数: 240

約数和(自身を含む): 719596800

約数和(自身を除く): 520156080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 61, 72, 76, 80, 90, 95, 114, 120, 122, 144, 152, 171, 180, 183, 190, 228, 239, 240, 244, 285, 304, 305, 342, 360, 366, 380, 456, 478, 488, 549, 570, 610, 684, 717, 720, 732, 760, 855, 912, 915, 956, 976, 1098, 1140, 1159, 1195, 1220, 1368, 1434, 1464, 1520, 1710, 1830, 1912, 2151, 2196, 2280, 2318, 2390, 2440, 2736, 2745, 2868, 2928, 3420, 3477, 3585, 3660, 3824, 4302, 4392, 4541, 4560, 4636, 4780, 4880, 5490, 5736, 5795, 6840, 6954, 7170, 7320, 8604, 8784, 9082, 9272, 9560, 10431, 10755, 10980, 11472, 11590, 13623, 13680, 13908, 14340, 14579, 14640, 17208, 17385, 18164, 18544, 19120, 20862, 21510, 21960, 22705, 23180, 27246, 27816, 28680, 29158, 34416, 34770, 36328, 40869, 41724, 43020, 43737, 43920, 45410, 46360, 52155, 54492, 55632, 57360, 58316, 68115, 69540, 72656, 72895, 81738, 83448, 86040, 87474, 90820, 92720, 104310, 108984, 116632, 131211, 136230, 139080, 145790, 163476, 166896, 172080, 174948, 181640, 204345, 208620, 217968, 218685, 233264, 262422, 272460, 277001, 278160, 291580, 326952, 349896, 363280, 408690, 417240, 437370, 524844, 544920, 554002, 583160, 653904, 656055, 699792, 817380, 831003, 834480, 874740, 1049688, 1089840, 1108004, 1166320, 1312110, 1385005, 1634760, 1662006, 1749480, 2099376, 2216008, 2493009, 2624220, 2770010, 3269520, 3324012, 3498960, 4155015, 4432016, 4986018, 5248440, 5540020, 6648024, 8310030, 9972036, 10496880, 11080040, 12465045, 13296048, 16620060, 19944072, 22160080, 24930090, 33240120, 39888144, 49860180, 66480240, 99720360, 199440720]

約数ペア:

[(1, 199440720), (2, 99720360), (3, 66480240), (4, 49860180), (5, 39888144), (6, 33240120), (8, 24930090), (9, 22160080), (10, 19944072), (12, 16620060), (15, 13296048), (16, 12465045), (18, 11080040), (19, 10496880), (20, 9972036), (24, 8310030), (30, 6648024), (36, 5540020), (38, 5248440), (40, 4986018), (45, 4432016), (48, 4155015), (57, 3498960), (60, 3324012), (61, 3269520), (72, 2770010), (76, 2624220), (80, 2493009), (90, 2216008), (95, 2099376), (114, 1749480), (120, 1662006), (122, 1634760), (144, 1385005), (152, 1312110), (171, 1166320), (180, 1108004), (183, 1089840), (190, 1049688), (228, 874740), (239, 834480), (240, 831003), (244, 817380), (285, 699792), (304, 656055), (305, 653904), (342, 583160), (360, 554002), (366, 544920), (380, 524844), (456, 437370), (478, 417240), (488, 408690), (549, 363280), (570, 349896), (610, 326952), (684, 291580), (717, 278160), (720, 277001), (732, 272460), (760, 262422), (855, 233264), (912, 218685), (915, 217968), (956, 208620), (976, 204345), (1098, 181640), (1140, 174948), (1159, 172080), (1195, 166896), (1220, 163476), (1368, 145790), (1434, 139080), (1464, 136230), (1520, 131211), (1710, 116632), (1830, 108984), (1912, 104310), (2151, 92720), (2196, 90820), (2280, 87474), (2318, 86040), (2390, 83448), (2440, 81738), (2736, 72895), (2745, 72656), (2868, 69540), (2928, 68115), (3420, 58316), (3477, 57360), (3585, 55632), (3660, 54492), (3824, 52155), (4302, 46360), (4392, 45410), (4541, 43920), (4560, 43737), (4636, 43020), (4780, 41724), (4880, 40869), (5490, 36328), (5736, 34770), (5795, 34416), (6840, 29158), (6954, 28680), (7170, 27816), (7320, 27246), (8604, 23180), (8784, 22705), (9082, 21960), (9272, 21510), (9560, 20862), (10431, 19120), (10755, 18544), (10980, 18164), (11472, 17385), (11590, 17208), (13623, 14640), (13680, 14579), (13908, 14340)]