72500290

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^2\times {\mathrm{89}}^1$

素因数の和:231

約数の個数: 48

約数和(自身を含む): 139141800

約数和(自身を除く): 66641510

約数列:

[1, 2, 5, 10, 29, 53, 58, 89, 106, 145, 178, 265, 290, 445, 530, 890, 1537, 2581, 2809, 3074, 4717, 5162, 5618, 7685, 9434, 12905, 14045, 15370, 23585, 25810, 28090, 47170, 81461, 136793, 162922, 250001, 273586, 407305, 500002, 683965, 814610, 1250005, 1367930, 2500010, 7250029, 14500058, 36250145, 72500290]

約数ペア:

[(1, 72500290), (2, 36250145), (5, 14500058), (10, 7250029), (29, 2500010), (53, 1367930), (58, 1250005), (89, 814610), (106, 683965), (145, 500002), (178, 407305), (265, 273586), (290, 250001), (445, 162922), (530, 136793), (890, 81461), (1537, 47170), (2581, 28090), (2809, 25810), (3074, 23585), (4717, 15370), (5162, 14045), (5618, 12905), (7685, 9434)]