1898455870

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1\times {\mathrm{431}}^1$

素因数の和:793

約数の個数: 64

約数和(自身を含む): 3657830400

約数和(自身を除く): 1759374530

約数列:

[1, 2, 5, 10, 19, 38, 95, 97, 190, 194, 239, 431, 478, 485, 862, 970, 1195, 1843, 2155, 2390, 3686, 4310, 4541, 8189, 9082, 9215, 16378, 18430, 22705, 23183, 40945, 41807, 45410, 46366, 81890, 83614, 103009, 115915, 206018, 209035, 231830, 418070, 440477, 515045, 794333, 880954, 1030090, 1588666, 1957171, 2202385, 3914342, 3971665, 4404770, 7943330, 9785855, 9991873, 19571710, 19983746, 49959365, 99918730, 189845587, 379691174, 949227935, 1898455870]

約数ペア:

[(1, 1898455870), (2, 949227935), (5, 379691174), (10, 189845587), (19, 99918730), (38, 49959365), (95, 19983746), (97, 19571710), (190, 9991873), (194, 9785855), (239, 7943330), (431, 4404770), (478, 3971665), (485, 3914342), (862, 2202385), (970, 1957171), (1195, 1588666), (1843, 1030090), (2155, 880954), (2390, 794333), (3686, 515045), (4310, 440477), (4541, 418070), (8189, 231830), (9082, 209035), (9215, 206018), (16378, 115915), (18430, 103009), (22705, 83614), (23183, 81890), (40945, 46366), (41807, 45410)]