181780020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21487}}^1$

素因数の和:21549

約数の個数: 72

約数和(自身を含む): 563157504

約数和(自身を除く): 381377484

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2820, 4230, 8460, 21487, 42974, 64461, 85948, 107435, 128922, 193383, 214870, 257844, 322305, 386766, 429740, 644610, 773532, 966915, 1009889, 1289220, 1933830, 2019778, 3029667, 3867660, 4039556, 5049445, 6059334, 9089001, 10098890, 12118668, 15148335, 18178002, 20197780, 30296670, 36356004, 45445005, 60593340, 90890010, 181780020]

約数ペア:

[(1, 181780020), (2, 90890010), (3, 60593340), (4, 45445005), (5, 36356004), (6, 30296670), (9, 20197780), (10, 18178002), (12, 15148335), (15, 12118668), (18, 10098890), (20, 9089001), (30, 6059334), (36, 5049445), (45, 4039556), (47, 3867660), (60, 3029667), (90, 2019778), (94, 1933830), (141, 1289220), (180, 1009889), (188, 966915), (235, 773532), (282, 644610), (423, 429740), (470, 386766), (564, 322305), (705, 257844), (846, 214870), (940, 193383), (1410, 128922), (1692, 107435), (2115, 85948), (2820, 64461), (4230, 42974), (8460, 21487)]