138478920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{571}}^1$

素因数の和:675

約数の個数: 128

約数和(自身を含む): 434903040

約数和(自身を除く): 296424120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 47, 60, 86, 94, 120, 129, 141, 172, 188, 215, 235, 258, 282, 344, 376, 430, 470, 516, 564, 571, 645, 705, 860, 940, 1032, 1128, 1142, 1290, 1410, 1713, 1720, 1880, 2021, 2284, 2580, 2820, 2855, 3426, 4042, 4568, 5160, 5640, 5710, 6063, 6852, 8084, 8565, 10105, 11420, 12126, 13704, 16168, 17130, 20210, 22840, 24252, 24553, 26837, 30315, 34260, 40420, 48504, 49106, 53674, 60630, 68520, 73659, 80511, 80840, 98212, 107348, 121260, 122765, 134185, 147318, 161022, 196424, 214696, 242520, 245530, 268370, 294636, 322044, 368295, 402555, 491060, 536740, 589272, 644088, 736590, 805110, 982120, 1073480, 1153991, 1473180, 1610220, 2307982, 2946360, 3220440, 3461973, 4615964, 5769955, 6923946, 9231928, 11539910, 13847892, 17309865, 23079820, 27695784, 34619730, 46159640, 69239460, 138478920]

約数ペア:

[(1, 138478920), (2, 69239460), (3, 46159640), (4, 34619730), (5, 27695784), (6, 23079820), (8, 17309865), (10, 13847892), (12, 11539910), (15, 9231928), (20, 6923946), (24, 5769955), (30, 4615964), (40, 3461973), (43, 3220440), (47, 2946360), (60, 2307982), (86, 1610220), (94, 1473180), (120, 1153991), (129, 1073480), (141, 982120), (172, 805110), (188, 736590), (215, 644088), (235, 589272), (258, 536740), (282, 491060), (344, 402555), (376, 368295), (430, 322044), (470, 294636), (516, 268370), (564, 245530), (571, 242520), (645, 214696), (705, 196424), (860, 161022), (940, 147318), (1032, 134185), (1128, 122765), (1142, 121260), (1290, 107348), (1410, 98212), (1713, 80840), (1720, 80511), (1880, 73659), (2021, 68520), (2284, 60630), (2580, 53674), (2820, 49106), (2855, 48504), (3426, 40420), (4042, 34260), (4568, 30315), (5160, 26837), (5640, 24553), (5710, 24252), (6063, 22840), (6852, 20210), (8084, 17130), (8565, 16168), (10105, 13704), (11420, 12126)]