1781047320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{49639}}^1$

素因数の和:49689

約数の個数: 128

約数和(自身を含む): 6004454400

約数和(自身を除く): 4223407080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 23, 24, 26, 30, 39, 40, 46, 52, 60, 65, 69, 78, 92, 104, 115, 120, 130, 138, 156, 184, 195, 230, 260, 276, 299, 312, 345, 390, 460, 520, 552, 598, 690, 780, 897, 920, 1196, 1380, 1495, 1560, 1794, 2392, 2760, 2990, 3588, 4485, 5980, 7176, 8970, 11960, 17940, 35880, 49639, 99278, 148917, 198556, 248195, 297834, 397112, 496390, 595668, 645307, 744585, 992780, 1141697, 1191336, 1290614, 1489170, 1935921, 1985560, 2283394, 2581228, 2978340, 3226535, 3425091, 3871842, 4566788, 5162456, 5708485, 5956680, 6453070, 6850182, 7743684, 9133576, 9679605, 11416970, 12906140, 13700364, 14842061, 15487368, 17125455, 19359210, 22833940, 25812280, 27400728, 29684122, 34250910, 38718420, 44526183, 45667880, 59368244, 68501820, 74210305, 77436840, 89052366, 118736488, 137003640, 148420610, 178104732, 222630915, 296841220, 356209464, 445261830, 593682440, 890523660, 1781047320]

約数ペア:

[(1, 1781047320), (2, 890523660), (3, 593682440), (4, 445261830), (5, 356209464), (6, 296841220), (8, 222630915), (10, 178104732), (12, 148420610), (13, 137003640), (15, 118736488), (20, 89052366), (23, 77436840), (24, 74210305), (26, 68501820), (30, 59368244), (39, 45667880), (40, 44526183), (46, 38718420), (52, 34250910), (60, 29684122), (65, 27400728), (69, 25812280), (78, 22833940), (92, 19359210), (104, 17125455), (115, 15487368), (120, 14842061), (130, 13700364), (138, 12906140), (156, 11416970), (184, 9679605), (195, 9133576), (230, 7743684), (260, 6850182), (276, 6453070), (299, 5956680), (312, 5708485), (345, 5162456), (390, 4566788), (460, 3871842), (520, 3425091), (552, 3226535), (598, 2978340), (690, 2581228), (780, 2283394), (897, 1985560), (920, 1935921), (1196, 1489170), (1380, 1290614), (1495, 1191336), (1560, 1141697), (1794, 992780), (2392, 744585), (2760, 645307), (2990, 595668), (3588, 496390), (4485, 397112), (5980, 297834), (7176, 248195), (8970, 198556), (11960, 148917), (17940, 99278), (35880, 49639)]