80278440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{997}}^1$

素因数の和:1083

約数の個数: 128

約数和(自身を含む): 267304320

約数和(自身を除く): 187025880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 61, 66, 88, 110, 120, 122, 132, 165, 183, 220, 244, 264, 305, 330, 366, 440, 488, 610, 660, 671, 732, 915, 997, 1220, 1320, 1342, 1464, 1830, 1994, 2013, 2440, 2684, 2991, 3355, 3660, 3988, 4026, 4985, 5368, 5982, 6710, 7320, 7976, 8052, 9970, 10065, 10967, 11964, 13420, 14955, 16104, 19940, 20130, 21934, 23928, 26840, 29910, 32901, 39880, 40260, 43868, 54835, 59820, 60817, 65802, 80520, 87736, 109670, 119640, 121634, 131604, 164505, 182451, 219340, 243268, 263208, 304085, 329010, 364902, 438680, 486536, 608170, 658020, 668987, 729804, 912255, 1216340, 1316040, 1337974, 1459608, 1824510, 2006961, 2432680, 2675948, 3344935, 3649020, 4013922, 5351896, 6689870, 7298040, 8027844, 10034805, 13379740, 16055688, 20069610, 26759480, 40139220, 80278440]

約数ペア:

[(1, 80278440), (2, 40139220), (3, 26759480), (4, 20069610), (5, 16055688), (6, 13379740), (8, 10034805), (10, 8027844), (11, 7298040), (12, 6689870), (15, 5351896), (20, 4013922), (22, 3649020), (24, 3344935), (30, 2675948), (33, 2432680), (40, 2006961), (44, 1824510), (55, 1459608), (60, 1337974), (61, 1316040), (66, 1216340), (88, 912255), (110, 729804), (120, 668987), (122, 658020), (132, 608170), (165, 486536), (183, 438680), (220, 364902), (244, 329010), (264, 304085), (305, 263208), (330, 243268), (366, 219340), (440, 182451), (488, 164505), (610, 131604), (660, 121634), (671, 119640), (732, 109670), (915, 87736), (997, 80520), (1220, 65802), (1320, 60817), (1342, 59820), (1464, 54835), (1830, 43868), (1994, 40260), (2013, 39880), (2440, 32901), (2684, 29910), (2991, 26840), (3355, 23928), (3660, 21934), (3988, 20130), (4026, 19940), (4985, 16104), (5368, 14955), (5982, 13420), (6710, 11964), (7320, 10967), (7976, 10065), (8052, 9970)]