291298280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1013}}^1$

素因数の和:1123

約数の個数: 128

約数和(自身を含む): 817689600

約数和(自身を除く): 526391320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 79, 91, 104, 130, 140, 158, 182, 260, 280, 316, 364, 395, 455, 520, 553, 632, 728, 790, 910, 1013, 1027, 1106, 1580, 1820, 2026, 2054, 2212, 2765, 3160, 3640, 4052, 4108, 4424, 5065, 5135, 5530, 7091, 7189, 8104, 8216, 10130, 10270, 11060, 13169, 14182, 14378, 20260, 20540, 22120, 26338, 28364, 28756, 35455, 35945, 40520, 41080, 52676, 56728, 57512, 65845, 70910, 71890, 80027, 92183, 105352, 131690, 141820, 143780, 160054, 184366, 263380, 283640, 287560, 320108, 368732, 400135, 460915, 526760, 560189, 640216, 737464, 800270, 921830, 1040351, 1120378, 1600540, 1843660, 2080702, 2240756, 2800945, 3201080, 3687320, 4161404, 4481512, 5201755, 5601890, 7282457, 8322808, 10403510, 11203780, 14564914, 20807020, 22407560, 29129828, 36412285, 41614040, 58259656, 72824570, 145649140, 291298280]

約数ペア:

[(1, 291298280), (2, 145649140), (4, 72824570), (5, 58259656), (7, 41614040), (8, 36412285), (10, 29129828), (13, 22407560), (14, 20807020), (20, 14564914), (26, 11203780), (28, 10403510), (35, 8322808), (40, 7282457), (52, 5601890), (56, 5201755), (65, 4481512), (70, 4161404), (79, 3687320), (91, 3201080), (104, 2800945), (130, 2240756), (140, 2080702), (158, 1843660), (182, 1600540), (260, 1120378), (280, 1040351), (316, 921830), (364, 800270), (395, 737464), (455, 640216), (520, 560189), (553, 526760), (632, 460915), (728, 400135), (790, 368732), (910, 320108), (1013, 287560), (1027, 283640), (1106, 263380), (1580, 184366), (1820, 160054), (2026, 143780), (2054, 141820), (2212, 131690), (2765, 105352), (3160, 92183), (3640, 80027), (4052, 71890), (4108, 70910), (4424, 65845), (5065, 57512), (5135, 56728), (5530, 52676), (7091, 41080), (7189, 40520), (8104, 35945), (8216, 35455), (10130, 28756), (10270, 28364), (11060, 26338), (13169, 22120), (14182, 20540), (14378, 20260)]