634781620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{77983}}^1$

素因数の和:78040

約数の個数: 48

約数和(自身を含む): 1493549568

約数和(自身を除く): 858767948

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 4070, 8140, 77983, 155966, 311932, 389915, 779830, 857813, 1559660, 1715626, 2885371, 3431252, 4289065, 5770742, 8578130, 11541484, 14426855, 17156260, 28853710, 31739081, 57707420, 63478162, 126956324, 158695405, 317390810, 634781620]

約数ペア:

[(1, 634781620), (2, 317390810), (4, 158695405), (5, 126956324), (10, 63478162), (11, 57707420), (20, 31739081), (22, 28853710), (37, 17156260), (44, 14426855), (55, 11541484), (74, 8578130), (110, 5770742), (148, 4289065), (185, 3431252), (220, 2885371), (370, 1715626), (407, 1559660), (740, 857813), (814, 779830), (1628, 389915), (2035, 311932), (4070, 155966), (8140, 77983)]