20980950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{2293}}^1$

素因数の和:2369

約数の個数: 48

約数和(自身を含む): 52908816

約数和(自身を除く): 31927866

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 61, 75, 122, 150, 183, 305, 366, 610, 915, 1525, 1830, 2293, 3050, 4575, 4586, 6879, 9150, 11465, 13758, 22930, 34395, 57325, 68790, 114650, 139873, 171975, 279746, 343950, 419619, 699365, 839238, 1398730, 2098095, 3496825, 4196190, 6993650, 10490475, 20980950]

約数ペア:

[(1, 20980950), (2, 10490475), (3, 6993650), (5, 4196190), (6, 3496825), (10, 2098095), (15, 1398730), (25, 839238), (30, 699365), (50, 419619), (61, 343950), (75, 279746), (122, 171975), (150, 139873), (183, 114650), (305, 68790), (366, 57325), (610, 34395), (915, 22930), (1525, 13758), (1830, 11465), (2293, 9150), (3050, 6879), (4575, 4586)]