128364800

素因数分解:

$2^8\times 5^2\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:704

約数の個数: 108

約数和(自身を含む): 328478976

約数和(自身を除く): 200114176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 200, 248, 256, 310, 320, 400, 496, 620, 640, 647, 775, 800, 992, 1240, 1280, 1294, 1550, 1600, 1984, 2480, 2588, 3100, 3200, 3235, 3968, 4960, 5176, 6200, 6400, 6470, 7936, 9920, 10352, 12400, 12940, 16175, 19840, 20057, 20704, 24800, 25880, 32350, 39680, 40114, 41408, 49600, 51760, 64700, 80228, 82816, 99200, 100285, 103520, 129400, 160456, 165632, 198400, 200570, 207040, 258800, 320912, 401140, 414080, 501425, 517600, 641824, 802280, 828160, 1002850, 1035200, 1283648, 1604560, 2005700, 2070400, 2567296, 3209120, 4011400, 4140800, 5134592, 6418240, 8022800, 12836480, 16045600, 25672960, 32091200, 64182400, 128364800]

約数ペア:

[(1, 128364800), (2, 64182400), (4, 32091200), (5, 25672960), (8, 16045600), (10, 12836480), (16, 8022800), (20, 6418240), (25, 5134592), (31, 4140800), (32, 4011400), (40, 3209120), (50, 2567296), (62, 2070400), (64, 2005700), (80, 1604560), (100, 1283648), (124, 1035200), (128, 1002850), (155, 828160), (160, 802280), (200, 641824), (248, 517600), (256, 501425), (310, 414080), (320, 401140), (400, 320912), (496, 258800), (620, 207040), (640, 200570), (647, 198400), (775, 165632), (800, 160456), (992, 129400), (1240, 103520), (1280, 100285), (1294, 99200), (1550, 82816), (1600, 80228), (1984, 64700), (2480, 51760), (2588, 49600), (3100, 41408), (3200, 40114), (3235, 39680), (3968, 32350), (4960, 25880), (5176, 24800), (6200, 20704), (6400, 20057), (6470, 19840), (7936, 16175), (9920, 12940), (10352, 12400)]