203107970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{499}}^1$

素因数の和:651

約数の個数: 64

約数和(自身を含む): 411264000

約数和(自身を除く): 208156030

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 101, 130, 155, 202, 310, 403, 499, 505, 806, 998, 1010, 1313, 2015, 2495, 2626, 3131, 4030, 4990, 6262, 6487, 6565, 12974, 13130, 15469, 15655, 30938, 31310, 32435, 40703, 50399, 64870, 77345, 81406, 100798, 154690, 201097, 203515, 251995, 402194, 407030, 503990, 655187, 1005485, 1310374, 1562369, 2010970, 3124738, 3275935, 6551870, 7811845, 15623690, 20310797, 40621594, 101553985, 203107970]

約数ペア:

[(1, 203107970), (2, 101553985), (5, 40621594), (10, 20310797), (13, 15623690), (26, 7811845), (31, 6551870), (62, 3275935), (65, 3124738), (101, 2010970), (130, 1562369), (155, 1310374), (202, 1005485), (310, 655187), (403, 503990), (499, 407030), (505, 402194), (806, 251995), (998, 203515), (1010, 201097), (1313, 154690), (2015, 100798), (2495, 81406), (2626, 77345), (3131, 64870), (4030, 50399), (4990, 40703), (6262, 32435), (6487, 31310), (6565, 30938), (12974, 15655), (13130, 15469)]