278652280

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{1663}}^1$

素因数の和:1804

約数の個数: 64

約数和(自身を含む): 646963200

約数和(自身を除く): 368310920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 71, 118, 142, 236, 284, 295, 355, 472, 568, 590, 710, 1180, 1420, 1663, 2360, 2840, 3326, 4189, 6652, 8315, 8378, 13304, 16630, 16756, 20945, 33260, 33512, 41890, 66520, 83780, 98117, 118073, 167560, 196234, 236146, 392468, 472292, 490585, 590365, 784936, 944584, 981170, 1180730, 1962340, 2361460, 3924680, 4722920, 6966307, 13932614, 27865228, 34831535, 55730456, 69663070, 139326140, 278652280]

約数ペア:

[(1, 278652280), (2, 139326140), (4, 69663070), (5, 55730456), (8, 34831535), (10, 27865228), (20, 13932614), (40, 6966307), (59, 4722920), (71, 3924680), (118, 2361460), (142, 1962340), (236, 1180730), (284, 981170), (295, 944584), (355, 784936), (472, 590365), (568, 490585), (590, 472292), (710, 392468), (1180, 236146), (1420, 196234), (1663, 167560), (2360, 118073), (2840, 98117), (3326, 83780), (4189, 66520), (6652, 41890), (8315, 33512), (8378, 33260), (13304, 20945), (16630, 16756)]