4345640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 10780560

約数和(自身を除く): 6434920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 137, 244, 260, 274, 305, 488, 520, 548, 610, 685, 793, 1096, 1220, 1370, 1586, 1781, 2440, 2740, 3172, 3562, 3965, 5480, 6344, 7124, 7930, 8357, 8905, 14248, 15860, 16714, 17810, 31720, 33428, 35620, 41785, 66856, 71240, 83570, 108641, 167140, 217282, 334280, 434564, 543205, 869128, 1086410, 2172820, 4345640]

約数ペア:

[(1, 4345640), (2, 2172820), (4, 1086410), (5, 869128), (8, 543205), (10, 434564), (13, 334280), (20, 217282), (26, 167140), (40, 108641), (52, 83570), (61, 71240), (65, 66856), (104, 41785), (122, 35620), (130, 33428), (137, 31720), (244, 17810), (260, 16714), (274, 15860), (305, 14248), (488, 8905), (520, 8357), (548, 7930), (610, 7124), (685, 6344), (793, 5480), (1096, 3965), (1220, 3562), (1370, 3172), (1586, 2740), (1781, 2440)]