1310910640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{557}}^1$

素因数の和:687

約数の個数: 160

約数和(自身を含む): 3440779776

約数和(自身を除く): 2129869136

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 73, 80, 104, 124, 130, 146, 155, 208, 248, 260, 292, 310, 365, 403, 496, 520, 557, 584, 620, 730, 806, 949, 1040, 1114, 1168, 1240, 1460, 1612, 1898, 2015, 2228, 2263, 2480, 2785, 2920, 3224, 3796, 4030, 4456, 4526, 4745, 5570, 5840, 6448, 7241, 7592, 8060, 8912, 9052, 9490, 11140, 11315, 14482, 15184, 16120, 17267, 18104, 18980, 22280, 22630, 28964, 29419, 32240, 34534, 36205, 36208, 37960, 40661, 44560, 45260, 57928, 58838, 69068, 72410, 75920, 81322, 86335, 90520, 115856, 117676, 138136, 144820, 147095, 162644, 172670, 181040, 203305, 224471, 235352, 276272, 289640, 294190, 325288, 345340, 406610, 448942, 470704, 528593, 579280, 588380, 650576, 690680, 813220, 897884, 1057186, 1122355, 1176760, 1260491, 1381360, 1626440, 1795768, 2114372, 2244710, 2353520, 2520982, 2642965, 3252880, 3591536, 4228744, 4489420, 5041964, 5285930, 6302455, 8457488, 8978840, 10083928, 10571860, 12604910, 16386383, 17957680, 20167856, 21143720, 25209820, 32772766, 42287440, 50419640, 65545532, 81931915, 100839280, 131091064, 163863830, 262182128, 327727660, 655455320, 1310910640]

約数ペア:

[(1, 1310910640), (2, 655455320), (4, 327727660), (5, 262182128), (8, 163863830), (10, 131091064), (13, 100839280), (16, 81931915), (20, 65545532), (26, 50419640), (31, 42287440), (40, 32772766), (52, 25209820), (62, 21143720), (65, 20167856), (73, 17957680), (80, 16386383), (104, 12604910), (124, 10571860), (130, 10083928), (146, 8978840), (155, 8457488), (208, 6302455), (248, 5285930), (260, 5041964), (292, 4489420), (310, 4228744), (365, 3591536), (403, 3252880), (496, 2642965), (520, 2520982), (557, 2353520), (584, 2244710), (620, 2114372), (730, 1795768), (806, 1626440), (949, 1381360), (1040, 1260491), (1114, 1176760), (1168, 1122355), (1240, 1057186), (1460, 897884), (1612, 813220), (1898, 690680), (2015, 650576), (2228, 588380), (2263, 579280), (2480, 528593), (2785, 470704), (2920, 448942), (3224, 406610), (3796, 345340), (4030, 325288), (4456, 294190), (4526, 289640), (4745, 276272), (5570, 235352), (5840, 224471), (6448, 203305), (7241, 181040), (7592, 172670), (8060, 162644), (8912, 147095), (9052, 144820), (9490, 138136), (11140, 117676), (11315, 115856), (14482, 90520), (15184, 86335), (16120, 81322), (17267, 75920), (18104, 72410), (18980, 69068), (22280, 58838), (22630, 57928), (28964, 45260), (29419, 44560), (32240, 40661), (34534, 37960), (36205, 36208)]