81387420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{601}}^1$

素因数の和:711

約数の個数: 96

約数和(自身を含む): 238276416

約数和(自身を除く): 156888996

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 61, 74, 111, 122, 148, 183, 185, 222, 244, 305, 366, 370, 444, 555, 601, 610, 732, 740, 915, 1110, 1202, 1220, 1803, 1830, 2220, 2257, 2404, 3005, 3606, 3660, 4514, 6010, 6771, 7212, 9015, 9028, 11285, 12020, 13542, 18030, 22237, 22570, 27084, 33855, 36060, 36661, 44474, 45140, 66711, 67710, 73322, 88948, 109983, 111185, 133422, 135420, 146644, 183305, 219966, 222370, 266844, 333555, 366610, 439932, 444740, 549915, 667110, 733220, 1099830, 1334220, 1356457, 2199660, 2712914, 4069371, 5425828, 6782285, 8138742, 13564570, 16277484, 20346855, 27129140, 40693710, 81387420]

約数ペア:

[(1, 81387420), (2, 40693710), (3, 27129140), (4, 20346855), (5, 16277484), (6, 13564570), (10, 8138742), (12, 6782285), (15, 5425828), (20, 4069371), (30, 2712914), (37, 2199660), (60, 1356457), (61, 1334220), (74, 1099830), (111, 733220), (122, 667110), (148, 549915), (183, 444740), (185, 439932), (222, 366610), (244, 333555), (305, 266844), (366, 222370), (370, 219966), (444, 183305), (555, 146644), (601, 135420), (610, 133422), (732, 111185), (740, 109983), (915, 88948), (1110, 73322), (1202, 67710), (1220, 66711), (1803, 45140), (1830, 44474), (2220, 36661), (2257, 36060), (2404, 33855), (3005, 27084), (3606, 22570), (3660, 22237), (4514, 18030), (6010, 13542), (6771, 12020), (7212, 11285), (9015, 9028)]