80478870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{521}}^1$

素因数の和:821

約数の個数: 64

約数和(自身を含む): 204456960

約数和(自身を除く): 123978090

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 271, 285, 521, 542, 570, 813, 1042, 1355, 1563, 1626, 2605, 2710, 3126, 4065, 5149, 5210, 7815, 8130, 9899, 10298, 15447, 15630, 19798, 25745, 29697, 30894, 49495, 51490, 59394, 77235, 98990, 141191, 148485, 154470, 282382, 296970, 423573, 705955, 847146, 1411910, 2117865, 2682629, 4235730, 5365258, 8047887, 13413145, 16095774, 26826290, 40239435, 80478870]

約数ペア:

[(1, 80478870), (2, 40239435), (3, 26826290), (5, 16095774), (6, 13413145), (10, 8047887), (15, 5365258), (19, 4235730), (30, 2682629), (38, 2117865), (57, 1411910), (95, 847146), (114, 705955), (190, 423573), (271, 296970), (285, 282382), (521, 154470), (542, 148485), (570, 141191), (813, 98990), (1042, 77235), (1355, 59394), (1563, 51490), (1626, 49495), (2605, 30894), (2710, 29697), (3126, 25745), (4065, 19798), (5149, 15630), (5210, 15447), (7815, 10298), (8130, 9899)]