8205720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:153

約数の個数: 128

約数和(自身を含む): 26784000

約数和(自身を除く): 18578280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 59, 60, 61, 76, 95, 114, 118, 120, 122, 152, 177, 183, 190, 228, 236, 244, 285, 295, 305, 354, 366, 380, 456, 472, 488, 570, 590, 610, 708, 732, 760, 885, 915, 1121, 1140, 1159, 1180, 1220, 1416, 1464, 1770, 1830, 2242, 2280, 2318, 2360, 2440, 3363, 3477, 3540, 3599, 3660, 4484, 4636, 5605, 5795, 6726, 6954, 7080, 7198, 7320, 8968, 9272, 10797, 11210, 11590, 13452, 13908, 14396, 16815, 17385, 17995, 21594, 22420, 23180, 26904, 27816, 28792, 33630, 34770, 35990, 43188, 44840, 46360, 53985, 67260, 68381, 69540, 71980, 86376, 107970, 134520, 136762, 139080, 143960, 205143, 215940, 273524, 341905, 410286, 431880, 547048, 683810, 820572, 1025715, 1367620, 1641144, 2051430, 2735240, 4102860, 8205720]

約数ペア:

[(1, 8205720), (2, 4102860), (3, 2735240), (4, 2051430), (5, 1641144), (6, 1367620), (8, 1025715), (10, 820572), (12, 683810), (15, 547048), (19, 431880), (20, 410286), (24, 341905), (30, 273524), (38, 215940), (40, 205143), (57, 143960), (59, 139080), (60, 136762), (61, 134520), (76, 107970), (95, 86376), (114, 71980), (118, 69540), (120, 68381), (122, 67260), (152, 53985), (177, 46360), (183, 44840), (190, 43188), (228, 35990), (236, 34770), (244, 33630), (285, 28792), (295, 27816), (305, 26904), (354, 23180), (366, 22420), (380, 21594), (456, 17995), (472, 17385), (488, 16815), (570, 14396), (590, 13908), (610, 13452), (708, 11590), (732, 11210), (760, 10797), (885, 9272), (915, 8968), (1121, 7320), (1140, 7198), (1159, 7080), (1180, 6954), (1220, 6726), (1416, 5795), (1464, 5605), (1770, 4636), (1830, 4484), (2242, 3660), (2280, 3599), (2318, 3540), (2360, 3477), (2440, 3363)]