421763680

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{211}}^1$

素因数の和:301

約数の個数: 144

約数和(自身を含む): 1114050672

約数和(自身を除く): 692286992

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 208, 211, 248, 260, 310, 403, 416, 422, 496, 520, 620, 806, 844, 961, 992, 1040, 1055, 1240, 1612, 1688, 1922, 2015, 2080, 2110, 2480, 2743, 3224, 3376, 3844, 4030, 4220, 4805, 4960, 5486, 6448, 6541, 6752, 7688, 8060, 8440, 9610, 10972, 12493, 12896, 13082, 13715, 15376, 16120, 16880, 19220, 21944, 24986, 26164, 27430, 30752, 32240, 32705, 33760, 38440, 43888, 49972, 52328, 54860, 62465, 64480, 65410, 76880, 85033, 87776, 99944, 104656, 109720, 124930, 130820, 153760, 170066, 199888, 202771, 209312, 219440, 249860, 261640, 340132, 399776, 405542, 425165, 438880, 499720, 523280, 680264, 811084, 850330, 999440, 1013855, 1046560, 1360528, 1622168, 1700660, 1998880, 2027710, 2636023, 2721056, 3244336, 3401320, 4055420, 5272046, 6488672, 6802640, 8110840, 10544092, 13180115, 13605280, 16221680, 21088184, 26360230, 32443360, 42176368, 52720460, 84352736, 105440920, 210881840, 421763680]

約数ペア:

[(1, 421763680), (2, 210881840), (4, 105440920), (5, 84352736), (8, 52720460), (10, 42176368), (13, 32443360), (16, 26360230), (20, 21088184), (26, 16221680), (31, 13605280), (32, 13180115), (40, 10544092), (52, 8110840), (62, 6802640), (65, 6488672), (80, 5272046), (104, 4055420), (124, 3401320), (130, 3244336), (155, 2721056), (160, 2636023), (208, 2027710), (211, 1998880), (248, 1700660), (260, 1622168), (310, 1360528), (403, 1046560), (416, 1013855), (422, 999440), (496, 850330), (520, 811084), (620, 680264), (806, 523280), (844, 499720), (961, 438880), (992, 425165), (1040, 405542), (1055, 399776), (1240, 340132), (1612, 261640), (1688, 249860), (1922, 219440), (2015, 209312), (2080, 202771), (2110, 199888), (2480, 170066), (2743, 153760), (3224, 130820), (3376, 124930), (3844, 109720), (4030, 104656), (4220, 99944), (4805, 87776), (4960, 85033), (5486, 76880), (6448, 65410), (6541, 64480), (6752, 62465), (7688, 54860), (8060, 52328), (8440, 49972), (9610, 43888), (10972, 38440), (12493, 33760), (12896, 32705), (13082, 32240), (13715, 30752), (15376, 27430), (16120, 26164), (16880, 24986), (19220, 21944)]