15241460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 36200808

約数和(自身を除く): 20959348

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 61, 62, 65, 122, 124, 130, 155, 244, 260, 305, 310, 403, 610, 620, 793, 806, 961, 1220, 1586, 1612, 1891, 1922, 2015, 3172, 3782, 3844, 3965, 4030, 4805, 7564, 7930, 8060, 9455, 9610, 12493, 15860, 18910, 19220, 24583, 24986, 37820, 49166, 49972, 58621, 62465, 98332, 117242, 122915, 124930, 234484, 245830, 249860, 293105, 491660, 586210, 762073, 1172420, 1524146, 3048292, 3810365, 7620730, 15241460]

約数ペア:

[(1, 15241460), (2, 7620730), (4, 3810365), (5, 3048292), (10, 1524146), (13, 1172420), (20, 762073), (26, 586210), (31, 491660), (52, 293105), (61, 249860), (62, 245830), (65, 234484), (122, 124930), (124, 122915), (130, 117242), (155, 98332), (244, 62465), (260, 58621), (305, 49972), (310, 49166), (403, 37820), (610, 24986), (620, 24583), (793, 19220), (806, 18910), (961, 15860), (1220, 12493), (1586, 9610), (1612, 9455), (1891, 8060), (1922, 7930), (2015, 7564), (3172, 4805), (3782, 4030), (3844, 3965)]