640790172

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{20483}}^1$

素因数の和:20583

約数の個数: 72

約数和(自身を含む): 1789482240

約数和(自身を除く): 1148692068

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 79, 99, 132, 158, 198, 237, 316, 396, 474, 711, 869, 948, 1422, 1738, 2607, 2844, 3476, 5214, 7821, 10428, 15642, 20483, 31284, 40966, 61449, 81932, 122898, 184347, 225313, 245796, 368694, 450626, 675939, 737388, 901252, 1351878, 1618157, 2027817, 2703756, 3236314, 4055634, 4854471, 6472628, 8111268, 9708942, 14563413, 17799727, 19417884, 29126826, 35599454, 53399181, 58253652, 71198908, 106798362, 160197543, 213596724, 320395086, 640790172]

約数ペア:

[(1, 640790172), (2, 320395086), (3, 213596724), (4, 160197543), (6, 106798362), (9, 71198908), (11, 58253652), (12, 53399181), (18, 35599454), (22, 29126826), (33, 19417884), (36, 17799727), (44, 14563413), (66, 9708942), (79, 8111268), (99, 6472628), (132, 4854471), (158, 4055634), (198, 3236314), (237, 2703756), (316, 2027817), (396, 1618157), (474, 1351878), (711, 901252), (869, 737388), (948, 675939), (1422, 450626), (1738, 368694), (2607, 245796), (2844, 225313), (3476, 184347), (5214, 122898), (7821, 81932), (10428, 61449), (15642, 40966), (20483, 31284)]