19958940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1607}}^1$

素因数の和:1648

約数の個数: 96

約数和(自身を含む): 64834560

約数和(自身を除く): 44875620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 90, 92, 108, 115, 135, 138, 180, 207, 230, 270, 276, 345, 414, 460, 540, 621, 690, 828, 1035, 1242, 1380, 1607, 2070, 2484, 3105, 3214, 4140, 4821, 6210, 6428, 8035, 9642, 12420, 14463, 16070, 19284, 24105, 28926, 32140, 36961, 43389, 48210, 57852, 72315, 73922, 86778, 96420, 110883, 144630, 147844, 173556, 184805, 216945, 221766, 289260, 332649, 369610, 433890, 443532, 554415, 665298, 739220, 867780, 997947, 1108830, 1330596, 1663245, 1995894, 2217660, 3326490, 3991788, 4989735, 6652980, 9979470, 19958940]

約数ペア:

[(1, 19958940), (2, 9979470), (3, 6652980), (4, 4989735), (5, 3991788), (6, 3326490), (9, 2217660), (10, 1995894), (12, 1663245), (15, 1330596), (18, 1108830), (20, 997947), (23, 867780), (27, 739220), (30, 665298), (36, 554415), (45, 443532), (46, 433890), (54, 369610), (60, 332649), (69, 289260), (90, 221766), (92, 216945), (108, 184805), (115, 173556), (135, 147844), (138, 144630), (180, 110883), (207, 96420), (230, 86778), (270, 73922), (276, 72315), (345, 57852), (414, 48210), (460, 43389), (540, 36961), (621, 32140), (690, 28926), (828, 24105), (1035, 19284), (1242, 16070), (1380, 14463), (1607, 12420), (2070, 9642), (2484, 8035), (3105, 6428), (3214, 6210), (4140, 4821)]