1961107880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{557}}^1$

素因数の和:723

約数の個数: 128

約数和(自身を含む): 4772908800

約数和(自身を除く): 2811800920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 89, 92, 115, 172, 178, 184, 215, 230, 344, 356, 430, 445, 460, 557, 712, 860, 890, 920, 989, 1114, 1720, 1780, 1978, 2047, 2228, 2785, 3560, 3827, 3956, 4094, 4456, 4945, 5570, 7654, 7912, 8188, 9890, 10235, 11140, 12811, 15308, 16376, 19135, 19780, 20470, 22280, 23951, 25622, 30616, 38270, 39560, 40940, 47902, 49573, 51244, 64055, 76540, 81880, 88021, 95804, 99146, 102488, 119755, 128110, 153080, 176042, 191608, 198292, 239510, 247865, 256220, 352084, 396584, 440105, 479020, 495730, 512440, 550873, 704168, 880210, 958040, 991460, 1101746, 1140179, 1760420, 1982920, 2131639, 2203492, 2280358, 2754365, 3520840, 4263278, 4406984, 4560716, 5508730, 5700895, 8526556, 9121432, 10658195, 11017460, 11401790, 17053112, 21316390, 22034920, 22803580, 42632780, 45607160, 49027697, 85265560, 98055394, 196110788, 245138485, 392221576, 490276970, 980553940, 1961107880]

約数ペア:

[(1, 1961107880), (2, 980553940), (4, 490276970), (5, 392221576), (8, 245138485), (10, 196110788), (20, 98055394), (23, 85265560), (40, 49027697), (43, 45607160), (46, 42632780), (86, 22803580), (89, 22034920), (92, 21316390), (115, 17053112), (172, 11401790), (178, 11017460), (184, 10658195), (215, 9121432), (230, 8526556), (344, 5700895), (356, 5508730), (430, 4560716), (445, 4406984), (460, 4263278), (557, 3520840), (712, 2754365), (860, 2280358), (890, 2203492), (920, 2131639), (989, 1982920), (1114, 1760420), (1720, 1140179), (1780, 1101746), (1978, 991460), (2047, 958040), (2228, 880210), (2785, 704168), (3560, 550873), (3827, 512440), (3956, 495730), (4094, 479020), (4456, 440105), (4945, 396584), (5570, 352084), (7654, 256220), (7912, 247865), (8188, 239510), (9890, 198292), (10235, 191608), (11140, 176042), (12811, 153080), (15308, 128110), (16376, 119755), (19135, 102488), (19780, 99146), (20470, 95804), (22280, 88021), (23951, 81880), (25622, 76540), (30616, 64055), (38270, 51244), (39560, 49573), (40940, 47902)]