39946460

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 86244480

約数和(自身を除く): 46298020

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 137, 239, 244, 274, 305, 478, 548, 610, 685, 956, 1195, 1220, 1370, 2390, 2740, 4780, 8357, 14579, 16714, 29158, 32743, 33428, 41785, 58316, 65486, 72895, 83570, 130972, 145790, 163715, 167140, 291580, 327430, 654860, 1997323, 3994646, 7989292, 9986615, 19973230, 39946460]

約数ペア:

[(1, 39946460), (2, 19973230), (4, 9986615), (5, 7989292), (10, 3994646), (20, 1997323), (61, 654860), (122, 327430), (137, 291580), (239, 167140), (244, 163715), (274, 145790), (305, 130972), (478, 83570), (548, 72895), (610, 65486), (685, 58316), (956, 41785), (1195, 33428), (1220, 32743), (1370, 29158), (2390, 16714), (2740, 14579), (4780, 8357)]