1994687560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{659}}^1\times {\mathrm{2441}}^1$

素因数の和:3142

約数の個数: 64

約数和(自身を含む): 4641753600

約数和(自身を除く): 2647066040

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 659, 1240, 1318, 2441, 2636, 3295, 4882, 5272, 6590, 9764, 12205, 13180, 19528, 20429, 24410, 26360, 40858, 48820, 75671, 81716, 97640, 102145, 151342, 163432, 204290, 302684, 378355, 408580, 605368, 756710, 817160, 1513420, 1608619, 3026840, 3217238, 6434476, 8043095, 12868952, 16086190, 32172380, 49867189, 64344760, 99734378, 199468756, 249335945, 398937512, 498671890, 997343780, 1994687560]

約数ペア:

[(1, 1994687560), (2, 997343780), (4, 498671890), (5, 398937512), (8, 249335945), (10, 199468756), (20, 99734378), (31, 64344760), (40, 49867189), (62, 32172380), (124, 16086190), (155, 12868952), (248, 8043095), (310, 6434476), (620, 3217238), (659, 3026840), (1240, 1608619), (1318, 1513420), (2441, 817160), (2636, 756710), (3295, 605368), (4882, 408580), (5272, 378355), (6590, 302684), (9764, 204290), (12205, 163432), (13180, 151342), (19528, 102145), (20429, 97640), (24410, 81716), (26360, 75671), (40858, 48820)]