20336000

素因数分解:

$2^7\times 5^3\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:101

約数の個数: 128

約数和(自身を含む): 53464320

約数和(自身を除く): 33128320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 41, 50, 62, 64, 80, 82, 100, 124, 125, 128, 155, 160, 164, 200, 205, 248, 250, 310, 320, 328, 400, 410, 496, 500, 620, 640, 656, 775, 800, 820, 992, 1000, 1025, 1240, 1271, 1312, 1550, 1600, 1640, 1984, 2000, 2050, 2480, 2542, 2624, 3100, 3200, 3280, 3875, 3968, 4000, 4100, 4960, 5084, 5125, 5248, 6200, 6355, 6560, 7750, 8000, 8200, 9920, 10168, 10250, 12400, 12710, 13120, 15500, 16000, 16400, 19840, 20336, 20500, 24800, 25420, 26240, 31000, 31775, 32800, 40672, 41000, 49600, 50840, 62000, 63550, 65600, 81344, 82000, 99200, 101680, 124000, 127100, 131200, 158875, 162688, 164000, 203360, 248000, 254200, 317750, 328000, 406720, 496000, 508400, 635500, 656000, 813440, 1016800, 1271000, 2033600, 2542000, 4067200, 5084000, 10168000, 20336000]

約数ペア:

[(1, 20336000), (2, 10168000), (4, 5084000), (5, 4067200), (8, 2542000), (10, 2033600), (16, 1271000), (20, 1016800), (25, 813440), (31, 656000), (32, 635500), (40, 508400), (41, 496000), (50, 406720), (62, 328000), (64, 317750), (80, 254200), (82, 248000), (100, 203360), (124, 164000), (125, 162688), (128, 158875), (155, 131200), (160, 127100), (164, 124000), (200, 101680), (205, 99200), (248, 82000), (250, 81344), (310, 65600), (320, 63550), (328, 62000), (400, 50840), (410, 49600), (496, 41000), (500, 40672), (620, 32800), (640, 31775), (656, 31000), (775, 26240), (800, 25420), (820, 24800), (992, 20500), (1000, 20336), (1025, 19840), (1240, 16400), (1271, 16000), (1312, 15500), (1550, 13120), (1600, 12710), (1640, 12400), (1984, 10250), (2000, 10168), (2050, 9920), (2480, 8200), (2542, 8000), (2624, 7750), (3100, 6560), (3200, 6355), (3280, 6200), (3875, 5248), (3968, 5125), (4000, 5084), (4100, 4960)]