78391560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1621}}^1$

素因数の和:1679

約数の個数: 128

約数和(自身を含む): 261596160

約数和(自身を除く): 183204600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 93, 104, 120, 124, 130, 155, 156, 186, 195, 248, 260, 310, 312, 372, 390, 403, 465, 520, 620, 744, 780, 806, 930, 1209, 1240, 1560, 1612, 1621, 1860, 2015, 2418, 3224, 3242, 3720, 4030, 4836, 4863, 6045, 6484, 8060, 8105, 9672, 9726, 12090, 12968, 16120, 16210, 19452, 21073, 24180, 24315, 32420, 38904, 42146, 48360, 48630, 50251, 63219, 64840, 84292, 97260, 100502, 105365, 126438, 150753, 168584, 194520, 201004, 210730, 251255, 252876, 301506, 316095, 402008, 421460, 502510, 505752, 603012, 632190, 653263, 753765, 842920, 1005020, 1206024, 1264380, 1306526, 1507530, 1959789, 2010040, 2528760, 2613052, 3015060, 3266315, 3919578, 5226104, 6030120, 6532630, 7839156, 9798945, 13065260, 15678312, 19597890, 26130520, 39195780, 78391560]

約数ペア:

[(1, 78391560), (2, 39195780), (3, 26130520), (4, 19597890), (5, 15678312), (6, 13065260), (8, 9798945), (10, 7839156), (12, 6532630), (13, 6030120), (15, 5226104), (20, 3919578), (24, 3266315), (26, 3015060), (30, 2613052), (31, 2528760), (39, 2010040), (40, 1959789), (52, 1507530), (60, 1306526), (62, 1264380), (65, 1206024), (78, 1005020), (93, 842920), (104, 753765), (120, 653263), (124, 632190), (130, 603012), (155, 505752), (156, 502510), (186, 421460), (195, 402008), (248, 316095), (260, 301506), (310, 252876), (312, 251255), (372, 210730), (390, 201004), (403, 194520), (465, 168584), (520, 150753), (620, 126438), (744, 105365), (780, 100502), (806, 97260), (930, 84292), (1209, 64840), (1240, 63219), (1560, 50251), (1612, 48630), (1621, 48360), (1860, 42146), (2015, 38904), (2418, 32420), (3224, 24315), (3242, 24180), (3720, 21073), (4030, 19452), (4836, 16210), (4863, 16120), (6045, 12968), (6484, 12090), (8060, 9726), (8105, 9672)]