18180720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1$

素因数の和:484

約数の個数: 160

約数和(自身を含む): 66067200

約数和(自身を除く): 47886480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 90, 95, 108, 114, 120, 135, 144, 152, 171, 180, 190, 216, 228, 240, 270, 285, 304, 342, 360, 380, 432, 443, 456, 513, 540, 570, 684, 720, 760, 855, 886, 912, 1026, 1080, 1140, 1329, 1368, 1520, 1710, 1772, 2052, 2160, 2215, 2280, 2565, 2658, 2736, 3420, 3544, 3987, 4104, 4430, 4560, 5130, 5316, 6645, 6840, 7088, 7974, 8208, 8417, 8860, 10260, 10632, 11961, 13290, 13680, 15948, 16834, 17720, 19935, 20520, 21264, 23922, 25251, 26580, 31896, 33668, 35440, 39870, 41040, 42085, 47844, 50502, 53160, 59805, 63792, 67336, 75753, 79740, 84170, 95688, 101004, 106320, 119610, 126255, 134672, 151506, 159480, 168340, 191376, 202008, 227259, 239220, 252510, 303012, 318960, 336680, 378765, 404016, 454518, 478440, 505020, 606024, 673360, 757530, 909036, 956880, 1010040, 1136295, 1212048, 1515060, 1818072, 2020080, 2272590, 3030120, 3636144, 4545180, 6060240, 9090360, 18180720]

約数ペア:

[(1, 18180720), (2, 9090360), (3, 6060240), (4, 4545180), (5, 3636144), (6, 3030120), (8, 2272590), (9, 2020080), (10, 1818072), (12, 1515060), (15, 1212048), (16, 1136295), (18, 1010040), (19, 956880), (20, 909036), (24, 757530), (27, 673360), (30, 606024), (36, 505020), (38, 478440), (40, 454518), (45, 404016), (48, 378765), (54, 336680), (57, 318960), (60, 303012), (72, 252510), (76, 239220), (80, 227259), (90, 202008), (95, 191376), (108, 168340), (114, 159480), (120, 151506), (135, 134672), (144, 126255), (152, 119610), (171, 106320), (180, 101004), (190, 95688), (216, 84170), (228, 79740), (240, 75753), (270, 67336), (285, 63792), (304, 59805), (342, 53160), (360, 50502), (380, 47844), (432, 42085), (443, 41040), (456, 39870), (513, 35440), (540, 33668), (570, 31896), (684, 26580), (720, 25251), (760, 23922), (855, 21264), (886, 20520), (912, 19935), (1026, 17720), (1080, 16834), (1140, 15948), (1329, 13680), (1368, 13290), (1520, 11961), (1710, 10632), (1772, 10260), (2052, 8860), (2160, 8417), (2215, 8208), (2280, 7974), (2565, 7088), (2658, 6840), (2736, 6645), (3420, 5316), (3544, 5130), (3987, 4560), (4104, 4430)]