161812680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:351

約数の個数: 128

約数和(自身を含む): 498960000

約数和(自身を除く): 337147320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 89, 109, 120, 139, 178, 218, 267, 278, 327, 356, 417, 436, 445, 534, 545, 556, 654, 695, 712, 834, 872, 890, 1068, 1090, 1112, 1308, 1335, 1390, 1635, 1668, 1780, 2085, 2136, 2180, 2616, 2670, 2780, 3270, 3336, 3560, 4170, 4360, 5340, 5560, 6540, 8340, 9701, 10680, 12371, 13080, 15151, 16680, 19402, 24742, 29103, 30302, 37113, 38804, 45453, 48505, 49484, 58206, 60604, 61855, 74226, 75755, 77608, 90906, 97010, 98968, 116412, 121208, 123710, 145515, 148452, 151510, 181812, 185565, 194020, 227265, 232824, 247420, 291030, 296904, 303020, 363624, 371130, 388040, 454530, 494840, 582060, 606040, 742260, 909060, 1164120, 1348439, 1484520, 1818120, 2696878, 4045317, 5393756, 6742195, 8090634, 10787512, 13484390, 16181268, 20226585, 26968780, 32362536, 40453170, 53937560, 80906340, 161812680]

約数ペア:

[(1, 161812680), (2, 80906340), (3, 53937560), (4, 40453170), (5, 32362536), (6, 26968780), (8, 20226585), (10, 16181268), (12, 13484390), (15, 10787512), (20, 8090634), (24, 6742195), (30, 5393756), (40, 4045317), (60, 2696878), (89, 1818120), (109, 1484520), (120, 1348439), (139, 1164120), (178, 909060), (218, 742260), (267, 606040), (278, 582060), (327, 494840), (356, 454530), (417, 388040), (436, 371130), (445, 363624), (534, 303020), (545, 296904), (556, 291030), (654, 247420), (695, 232824), (712, 227265), (834, 194020), (872, 185565), (890, 181812), (1068, 151510), (1090, 148452), (1112, 145515), (1308, 123710), (1335, 121208), (1390, 116412), (1635, 98968), (1668, 97010), (1780, 90906), (2085, 77608), (2136, 75755), (2180, 74226), (2616, 61855), (2670, 60604), (2780, 58206), (3270, 49484), (3336, 48505), (3560, 45453), (4170, 38804), (4360, 37113), (5340, 30302), (5560, 29103), (6540, 24742), (8340, 19402), (9701, 16680), (10680, 15151), (12371, 13080)]