20623460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7211}}^1$

素因数の和:7244

約数の個数: 48

約数和(自身を含む): 50887872

約数和(自身を除く): 30264412

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 7211, 14422, 28844, 36055, 72110, 79321, 93743, 144220, 158642, 187486, 317284, 374972, 396605, 468715, 793210, 937430, 1031173, 1586420, 1874860, 2062346, 4124692, 5155865, 10311730, 20623460]

約数ペア:

[(1, 20623460), (2, 10311730), (4, 5155865), (5, 4124692), (10, 2062346), (11, 1874860), (13, 1586420), (20, 1031173), (22, 937430), (26, 793210), (44, 468715), (52, 396605), (55, 374972), (65, 317284), (110, 187486), (130, 158642), (143, 144220), (220, 93743), (260, 79321), (286, 72110), (572, 36055), (715, 28844), (1430, 14422), (2860, 7211)]