249812940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{320273}}^1$

素因数の和:320298

約数の個数: 48

約数和(自身を含む): 753284448

約数和(自身を除く): 503471508

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 320273, 640546, 960819, 1281092, 1601365, 1921638, 3202730, 3843276, 4163549, 4804095, 6405460, 8327098, 9608190, 12490647, 16654196, 19216380, 20817745, 24981294, 41635490, 49962588, 62453235, 83270980, 124906470, 249812940]

約数ペア:

[(1, 249812940), (2, 124906470), (3, 83270980), (4, 62453235), (5, 49962588), (6, 41635490), (10, 24981294), (12, 20817745), (13, 19216380), (15, 16654196), (20, 12490647), (26, 9608190), (30, 8327098), (39, 6405460), (52, 4804095), (60, 4163549), (65, 3843276), (78, 3202730), (130, 1921638), (156, 1601365), (195, 1281092), (260, 960819), (390, 640546), (780, 320273)]