19610240

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2357}}^1$

素因数の和:2389

約数の個数: 64

約数和(自身を含む): 50508360

約数和(自身を除く): 30898120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 2357, 4160, 4714, 8320, 9428, 11785, 18856, 23570, 30641, 37712, 47140, 61282, 75424, 94280, 122564, 150848, 153205, 188560, 245128, 301696, 306410, 377120, 490256, 612820, 754240, 980512, 1225640, 1508480, 1961024, 2451280, 3922048, 4902560, 9805120, 19610240]

約数ペア:

[(1, 19610240), (2, 9805120), (4, 4902560), (5, 3922048), (8, 2451280), (10, 1961024), (13, 1508480), (16, 1225640), (20, 980512), (26, 754240), (32, 612820), (40, 490256), (52, 377120), (64, 306410), (65, 301696), (80, 245128), (104, 188560), (128, 153205), (130, 150848), (160, 122564), (208, 94280), (260, 75424), (320, 61282), (416, 47140), (520, 37712), (640, 30641), (832, 23570), (1040, 18856), (1664, 11785), (2080, 9428), (2357, 8320), (4160, 4714)]