1277257040

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{8443}}^1$

素因数の和:8548

約数の個数: 80

約数和(自身を含む): 3116038656

約数和(自身を除く): 1838781616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 61, 62, 80, 122, 124, 155, 244, 248, 305, 310, 488, 496, 610, 620, 976, 1220, 1240, 1891, 2440, 2480, 3782, 4880, 7564, 8443, 9455, 15128, 16886, 18910, 30256, 33772, 37820, 42215, 67544, 75640, 84430, 135088, 151280, 168860, 261733, 337720, 515023, 523466, 675440, 1030046, 1046932, 1308665, 2060092, 2093864, 2575115, 2617330, 4120184, 4187728, 5150230, 5234660, 8240368, 10300460, 10469320, 15965713, 20600920, 20938640, 31931426, 41201840, 63862852, 79828565, 127725704, 159657130, 255451408, 319314260, 638628520, 1277257040]

約数ペア:

[(1, 1277257040), (2, 638628520), (4, 319314260), (5, 255451408), (8, 159657130), (10, 127725704), (16, 79828565), (20, 63862852), (31, 41201840), (40, 31931426), (61, 20938640), (62, 20600920), (80, 15965713), (122, 10469320), (124, 10300460), (155, 8240368), (244, 5234660), (248, 5150230), (305, 4187728), (310, 4120184), (488, 2617330), (496, 2575115), (610, 2093864), (620, 2060092), (976, 1308665), (1220, 1046932), (1240, 1030046), (1891, 675440), (2440, 523466), (2480, 515023), (3782, 337720), (4880, 261733), (7564, 168860), (8443, 151280), (9455, 135088), (15128, 84430), (16886, 75640), (18910, 67544), (30256, 42215), (33772, 37820)]