81421560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{709}}^1$

素因数の和:766

約数の個数: 192

約数和(自身を含む): 299052000

約数和(自身を除く): 217630440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 29, 30, 33, 36, 40, 44, 45, 55, 58, 60, 66, 72, 87, 88, 90, 99, 110, 116, 120, 132, 145, 165, 174, 180, 198, 220, 232, 261, 264, 290, 319, 330, 348, 360, 396, 435, 440, 495, 522, 580, 638, 660, 696, 709, 792, 870, 957, 990, 1044, 1160, 1276, 1305, 1320, 1418, 1595, 1740, 1914, 1980, 2088, 2127, 2552, 2610, 2836, 2871, 3190, 3480, 3545, 3828, 3960, 4254, 4785, 5220, 5672, 5742, 6380, 6381, 7090, 7656, 7799, 8508, 9570, 10440, 10635, 11484, 12760, 12762, 14180, 14355, 15598, 17016, 19140, 20561, 21270, 22968, 23397, 25524, 28360, 28710, 31196, 31905, 38280, 38995, 41122, 42540, 46794, 51048, 57420, 61683, 62392, 63810, 70191, 77990, 82244, 85080, 93588, 102805, 114840, 116985, 123366, 127620, 140382, 155980, 164488, 185049, 187176, 205610, 226171, 233970, 246732, 255240, 280764, 308415, 311960, 350955, 370098, 411220, 452342, 467940, 493464, 561528, 616830, 678513, 701910, 740196, 822440, 904684, 925245, 935880, 1130855, 1233660, 1357026, 1403820, 1480392, 1809368, 1850490, 2035539, 2261710, 2467320, 2714052, 2807640, 3392565, 3700980, 4071078, 4523420, 5428104, 6785130, 7401960, 8142156, 9046840, 10177695, 13570260, 16284312, 20355390, 27140520, 40710780, 81421560]

約数ペア:

[(1, 81421560), (2, 40710780), (3, 27140520), (4, 20355390), (5, 16284312), (6, 13570260), (8, 10177695), (9, 9046840), (10, 8142156), (11, 7401960), (12, 6785130), (15, 5428104), (18, 4523420), (20, 4071078), (22, 3700980), (24, 3392565), (29, 2807640), (30, 2714052), (33, 2467320), (36, 2261710), (40, 2035539), (44, 1850490), (45, 1809368), (55, 1480392), (58, 1403820), (60, 1357026), (66, 1233660), (72, 1130855), (87, 935880), (88, 925245), (90, 904684), (99, 822440), (110, 740196), (116, 701910), (120, 678513), (132, 616830), (145, 561528), (165, 493464), (174, 467940), (180, 452342), (198, 411220), (220, 370098), (232, 350955), (261, 311960), (264, 308415), (290, 280764), (319, 255240), (330, 246732), (348, 233970), (360, 226171), (396, 205610), (435, 187176), (440, 185049), (495, 164488), (522, 155980), (580, 140382), (638, 127620), (660, 123366), (696, 116985), (709, 114840), (792, 102805), (870, 93588), (957, 85080), (990, 82244), (1044, 77990), (1160, 70191), (1276, 63810), (1305, 62392), (1320, 61683), (1418, 57420), (1595, 51048), (1740, 46794), (1914, 42540), (1980, 41122), (2088, 38995), (2127, 38280), (2552, 31905), (2610, 31196), (2836, 28710), (2871, 28360), (3190, 25524), (3480, 23397), (3545, 22968), (3828, 21270), (3960, 20561), (4254, 19140), (4785, 17016), (5220, 15598), (5672, 14355), (5742, 14180), (6380, 12762), (6381, 12760), (7090, 11484), (7656, 10635), (7799, 10440), (8508, 9570)]