388712740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{24509}}^1$

素因数の和:24592

約数の個数: 48

約数和(自身を含む): 893536560

約数和(自身を除く): 504823820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 7930, 15860, 24509, 49018, 98036, 122545, 245090, 318617, 490180, 637234, 1274468, 1495049, 1593085, 2990098, 3186170, 5980196, 6372340, 7475245, 14950490, 19435637, 29900980, 38871274, 77742548, 97178185, 194356370, 388712740]

約数ペア:

[(1, 388712740), (2, 194356370), (4, 97178185), (5, 77742548), (10, 38871274), (13, 29900980), (20, 19435637), (26, 14950490), (52, 7475245), (61, 6372340), (65, 5980196), (122, 3186170), (130, 2990098), (244, 1593085), (260, 1495049), (305, 1274468), (610, 637234), (793, 490180), (1220, 318617), (1586, 245090), (3172, 122545), (3965, 98036), (7930, 49018), (15860, 24509)]