80294440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{227}}^1\times {\mathrm{239}}^1$

素因数の和:514

約数の個数: 64

約数和(自身を含む): 187142400

約数和(自身を除く): 106847960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 227, 239, 296, 370, 454, 478, 740, 908, 956, 1135, 1195, 1480, 1816, 1912, 2270, 2390, 4540, 4780, 8399, 8843, 9080, 9560, 16798, 17686, 33596, 35372, 41995, 44215, 54253, 67192, 70744, 83990, 88430, 108506, 167980, 176860, 217012, 271265, 335960, 353720, 434024, 542530, 1085060, 2007361, 2170120, 4014722, 8029444, 10036805, 16058888, 20073610, 40147220, 80294440]

約数ペア:

[(1, 80294440), (2, 40147220), (4, 20073610), (5, 16058888), (8, 10036805), (10, 8029444), (20, 4014722), (37, 2170120), (40, 2007361), (74, 1085060), (148, 542530), (185, 434024), (227, 353720), (239, 335960), (296, 271265), (370, 217012), (454, 176860), (478, 167980), (740, 108506), (908, 88430), (956, 83990), (1135, 70744), (1195, 67192), (1480, 54253), (1816, 44215), (1912, 41995), (2270, 35372), (2390, 33596), (4540, 17686), (4780, 16798), (8399, 9560), (8843, 9080)]