164235760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2357}}^1$

素因数の和:2450

約数の個数: 80

約数和(自身を含む): 417535776

約数和(自身を除く): 253300016

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 67, 80, 104, 130, 134, 208, 260, 268, 335, 520, 536, 670, 871, 1040, 1072, 1340, 1742, 2357, 2680, 3484, 4355, 4714, 5360, 6968, 8710, 9428, 11785, 13936, 17420, 18856, 23570, 30641, 34840, 37712, 47140, 61282, 69680, 94280, 122564, 153205, 157919, 188560, 245128, 306410, 315838, 490256, 612820, 631676, 789595, 1225640, 1263352, 1579190, 2052947, 2451280, 2526704, 3158380, 4105894, 6316760, 8211788, 10264735, 12633520, 16423576, 20529470, 32847152, 41058940, 82117880, 164235760]

約数ペア:

[(1, 164235760), (2, 82117880), (4, 41058940), (5, 32847152), (8, 20529470), (10, 16423576), (13, 12633520), (16, 10264735), (20, 8211788), (26, 6316760), (40, 4105894), (52, 3158380), (65, 2526704), (67, 2451280), (80, 2052947), (104, 1579190), (130, 1263352), (134, 1225640), (208, 789595), (260, 631676), (268, 612820), (335, 490256), (520, 315838), (536, 306410), (670, 245128), (871, 188560), (1040, 157919), (1072, 153205), (1340, 122564), (1742, 94280), (2357, 69680), (2680, 61282), (3484, 47140), (4355, 37712), (4714, 34840), (5360, 30641), (6968, 23570), (8710, 18856), (9428, 17420), (11785, 13936)]