78545320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9049}}^1$

素因数の和:9098

約数の個数: 64

約数和(自身を含む): 208512000

約数和(自身を除く): 129966680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 9049, 18098, 36196, 45245, 63343, 72392, 90490, 126686, 180980, 253372, 280519, 316715, 361960, 506744, 561038, 633430, 1122076, 1266860, 1402595, 1963633, 2244152, 2533720, 2805190, 3927266, 5610380, 7854532, 9818165, 11220760, 15709064, 19636330, 39272660, 78545320]

約数ペア:

[(1, 78545320), (2, 39272660), (4, 19636330), (5, 15709064), (7, 11220760), (8, 9818165), (10, 7854532), (14, 5610380), (20, 3927266), (28, 2805190), (31, 2533720), (35, 2244152), (40, 1963633), (56, 1402595), (62, 1266860), (70, 1122076), (124, 633430), (140, 561038), (155, 506744), (217, 361960), (248, 316715), (280, 280519), (310, 253372), (434, 180980), (620, 126686), (868, 90490), (1085, 72392), (1240, 63343), (1736, 45245), (2170, 36196), (4340, 18098), (8680, 9049)]