439464980

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1\times {\mathrm{809}}^1$

素因数の和:1148

約数の個数: 48

約数和(自身を含む): 935277840

約数和(自身を除く): 495812860

約数列:

[1, 2, 4, 5, 10, 20, 157, 173, 314, 346, 628, 692, 785, 809, 865, 1570, 1618, 1730, 3140, 3236, 3460, 4045, 8090, 16180, 27161, 54322, 108644, 127013, 135805, 139957, 254026, 271610, 279914, 508052, 543220, 559828, 635065, 699785, 1270130, 1399570, 2540260, 2799140, 21973249, 43946498, 87892996, 109866245, 219732490, 439464980]

約数ペア:

[(1, 439464980), (2, 219732490), (4, 109866245), (5, 87892996), (10, 43946498), (20, 21973249), (157, 2799140), (173, 2540260), (314, 1399570), (346, 1270130), (628, 699785), (692, 635065), (785, 559828), (809, 543220), (865, 508052), (1570, 279914), (1618, 271610), (1730, 254026), (3140, 139957), (3236, 135805), (3460, 127013), (4045, 108644), (8090, 54322), (16180, 27161)]