720290740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{39019}}^1$

素因数の和:39112

約数の個数: 48

約数和(自身を含む): 1651950720

約数和(自身を除く): 931659980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1846, 3692, 4615, 9230, 18460, 39019, 78038, 156076, 195095, 390190, 507247, 780380, 1014494, 2028988, 2536235, 2770349, 5072470, 5540698, 10144940, 11081396, 13851745, 27703490, 36014537, 55406980, 72029074, 144058148, 180072685, 360145370, 720290740]

約数ペア:

[(1, 720290740), (2, 360145370), (4, 180072685), (5, 144058148), (10, 72029074), (13, 55406980), (20, 36014537), (26, 27703490), (52, 13851745), (65, 11081396), (71, 10144940), (130, 5540698), (142, 5072470), (260, 2770349), (284, 2536235), (355, 2028988), (710, 1014494), (923, 780380), (1420, 507247), (1846, 390190), (3692, 195095), (4615, 156076), (9230, 78038), (18460, 39019)]