2505880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:164

約数の個数: 64

約数和(自身を含む): 6249600

約数和(自身を除く): 3743720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 79, 104, 122, 130, 158, 244, 260, 305, 316, 395, 488, 520, 610, 632, 790, 793, 1027, 1220, 1580, 1586, 2054, 2440, 3160, 3172, 3965, 4108, 4819, 5135, 6344, 7930, 8216, 9638, 10270, 15860, 19276, 20540, 24095, 31720, 38552, 41080, 48190, 62647, 96380, 125294, 192760, 250588, 313235, 501176, 626470, 1252940, 2505880]

約数ペア:

[(1, 2505880), (2, 1252940), (4, 626470), (5, 501176), (8, 313235), (10, 250588), (13, 192760), (20, 125294), (26, 96380), (40, 62647), (52, 48190), (61, 41080), (65, 38552), (79, 31720), (104, 24095), (122, 20540), (130, 19276), (158, 15860), (244, 10270), (260, 9638), (305, 8216), (316, 7930), (395, 6344), (488, 5135), (520, 4819), (610, 4108), (632, 3965), (790, 3172), (793, 3160), (1027, 2440), (1220, 2054), (1580, 1586)]