18011240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1823}}^1$

素因数の和:1866

約数の個数: 64

約数和(自身を含む): 45964800

約数和(自身を除く): 27953560

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1823, 1976, 2470, 3646, 4940, 7292, 9115, 9880, 14584, 18230, 23699, 34637, 36460, 47398, 69274, 72920, 94796, 118495, 138548, 173185, 189592, 236990, 277096, 346370, 450281, 473980, 692740, 900562, 947960, 1385480, 1801124, 2251405, 3602248, 4502810, 9005620, 18011240]

約数ペア:

[(1, 18011240), (2, 9005620), (4, 4502810), (5, 3602248), (8, 2251405), (10, 1801124), (13, 1385480), (19, 947960), (20, 900562), (26, 692740), (38, 473980), (40, 450281), (52, 346370), (65, 277096), (76, 236990), (95, 189592), (104, 173185), (130, 138548), (152, 118495), (190, 94796), (247, 72920), (260, 69274), (380, 47398), (494, 36460), (520, 34637), (760, 23699), (988, 18230), (1235, 14584), (1823, 9880), (1976, 9115), (2470, 7292), (3646, 4940)]