305428240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{293681}}^1$

素因数の和:293707

約数の個数: 40

約数和(自身を含む): 764747928

約数和(自身を除く): 459319688

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 293681, 587362, 1174724, 1468405, 2349448, 2936810, 3817853, 4698896, 5873620, 7635706, 11747240, 15271412, 19089265, 23494480, 30542824, 38178530, 61085648, 76357060, 152714120, 305428240]

約数ペア:

[(1, 305428240), (2, 152714120), (4, 76357060), (5, 61085648), (8, 38178530), (10, 30542824), (13, 23494480), (16, 19089265), (20, 15271412), (26, 11747240), (40, 7635706), (52, 5873620), (65, 4698896), (80, 3817853), (104, 2936810), (130, 2349448), (208, 1468405), (260, 1174724), (520, 587362), (1040, 293681)]