217992040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{12763}}^1$

素因数の和:12842

約数の個数: 64

約数和(自身を含む): 569784960

約数和(自身を除く): 351792920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 488, 610, 854, 1220, 1708, 2135, 2440, 3416, 4270, 8540, 12763, 17080, 25526, 51052, 63815, 89341, 102104, 127630, 178682, 255260, 357364, 446705, 510520, 714728, 778543, 893410, 1557086, 1786820, 3114172, 3573640, 3892715, 5449801, 6228344, 7785430, 10899602, 15570860, 21799204, 27249005, 31141720, 43598408, 54498010, 108996020, 217992040]

約数ペア:

[(1, 217992040), (2, 108996020), (4, 54498010), (5, 43598408), (7, 31141720), (8, 27249005), (10, 21799204), (14, 15570860), (20, 10899602), (28, 7785430), (35, 6228344), (40, 5449801), (56, 3892715), (61, 3573640), (70, 3114172), (122, 1786820), (140, 1557086), (244, 893410), (280, 778543), (305, 714728), (427, 510520), (488, 446705), (610, 357364), (854, 255260), (1220, 178682), (1708, 127630), (2135, 102104), (2440, 89341), (3416, 63815), (4270, 51052), (8540, 25526), (12763, 17080)]