123780456

素因数分解:

$2^3\times 3^2\times {\mathrm{103}}^1\times {\mathrm{16691}}^1$

素因数の和:16806

約数の個数: 48

約数和(自身を含む): 338513760

約数和(自身を除く): 214733304

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 103, 206, 309, 412, 618, 824, 927, 1236, 1854, 2472, 3708, 7416, 16691, 33382, 50073, 66764, 100146, 133528, 150219, 200292, 300438, 400584, 600876, 1201752, 1719173, 3438346, 5157519, 6876692, 10315038, 13753384, 15472557, 20630076, 30945114, 41260152, 61890228, 123780456]

約数ペア:

[(1, 123780456), (2, 61890228), (3, 41260152), (4, 30945114), (6, 20630076), (8, 15472557), (9, 13753384), (12, 10315038), (18, 6876692), (24, 5157519), (36, 3438346), (72, 1719173), (103, 1201752), (206, 600876), (309, 400584), (412, 300438), (618, 200292), (824, 150219), (927, 133528), (1236, 100146), (1854, 66764), (2472, 50073), (3708, 33382), (7416, 16691)]