1252940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:162

約数の個数: 48

約数和(自身を含む): 2916480

約数和(自身を除く): 1663540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 79, 122, 130, 158, 244, 260, 305, 316, 395, 610, 790, 793, 1027, 1220, 1580, 1586, 2054, 3172, 3965, 4108, 4819, 5135, 7930, 9638, 10270, 15860, 19276, 20540, 24095, 48190, 62647, 96380, 125294, 250588, 313235, 626470, 1252940]

約数ペア:

[(1, 1252940), (2, 626470), (4, 313235), (5, 250588), (10, 125294), (13, 96380), (20, 62647), (26, 48190), (52, 24095), (61, 20540), (65, 19276), (79, 15860), (122, 10270), (130, 9638), (158, 7930), (244, 5135), (260, 4819), (305, 4108), (316, 3965), (395, 3172), (610, 2054), (790, 1586), (793, 1580), (1027, 1220)]