20642260970

素因数分解:

$2^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{571}}^1\times {\mathrm{863}}^1$

素因数の和:1571

約数の個数: 64

約数和(自身を含む): 38429614080

約数和(自身を除く): 17787353110

約数列:

[1, 2, 5, 10, 59, 71, 118, 142, 295, 355, 571, 590, 710, 863, 1142, 1726, 2855, 4189, 4315, 5710, 8378, 8630, 20945, 33689, 40541, 41890, 50917, 61273, 67378, 81082, 101834, 122546, 168445, 202705, 254585, 306365, 336890, 405410, 492773, 509170, 612730, 985546, 2391919, 2463865, 3615107, 4783838, 4927730, 7230214, 11959595, 18075535, 23919190, 29073607, 34986883, 36151070, 58147214, 69973766, 145368035, 174934415, 290736070, 349868830, 2064226097, 4128452194, 10321130485, 20642260970]

約数ペア:

[(1, 20642260970), (2, 10321130485), (5, 4128452194), (10, 2064226097), (59, 349868830), (71, 290736070), (118, 174934415), (142, 145368035), (295, 69973766), (355, 58147214), (571, 36151070), (590, 34986883), (710, 29073607), (863, 23919190), (1142, 18075535), (1726, 11959595), (2855, 7230214), (4189, 4927730), (4315, 4783838), (5710, 3615107), (8378, 2463865), (8630, 2391919), (20945, 985546), (33689, 612730), (40541, 509170), (41890, 492773), (50917, 405410), (61273, 336890), (67378, 306365), (81082, 254585), (101834, 202705), (122546, 168445)]