638014720

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2297}}^1$

素因数の和:2356

約数の個数: 144

約数和(自身を含む): 1803691008

約数和(自身を除く): 1165676288

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 256, 280, 310, 320, 434, 448, 496, 560, 620, 640, 868, 896, 992, 1085, 1120, 1240, 1280, 1736, 1792, 1984, 2170, 2240, 2297, 2480, 3472, 3968, 4340, 4480, 4594, 4960, 6944, 7936, 8680, 8960, 9188, 9920, 11485, 13888, 16079, 17360, 18376, 19840, 22970, 27776, 32158, 34720, 36752, 39680, 45940, 55552, 64316, 69440, 71207, 73504, 80395, 91880, 128632, 138880, 142414, 147008, 160790, 183760, 257264, 277760, 284828, 294016, 321580, 356035, 367520, 498449, 514528, 569656, 588032, 643160, 712070, 735040, 996898, 1029056, 1139312, 1286320, 1424140, 1470080, 1993796, 2058112, 2278624, 2492245, 2572640, 2848280, 2940160, 3987592, 4116224, 4557248, 4984490, 5145280, 5696560, 7975184, 9114496, 9968980, 10290560, 11393120, 15950368, 18228992, 19937960, 20581120, 22786240, 31900736, 39875920, 45572480, 63801472, 79751840, 91144960, 127602944, 159503680, 319007360, 638014720]

約数ペア:

[(1, 638014720), (2, 319007360), (4, 159503680), (5, 127602944), (7, 91144960), (8, 79751840), (10, 63801472), (14, 45572480), (16, 39875920), (20, 31900736), (28, 22786240), (31, 20581120), (32, 19937960), (35, 18228992), (40, 15950368), (56, 11393120), (62, 10290560), (64, 9968980), (70, 9114496), (80, 7975184), (112, 5696560), (124, 5145280), (128, 4984490), (140, 4557248), (155, 4116224), (160, 3987592), (217, 2940160), (224, 2848280), (248, 2572640), (256, 2492245), (280, 2278624), (310, 2058112), (320, 1993796), (434, 1470080), (448, 1424140), (496, 1286320), (560, 1139312), (620, 1029056), (640, 996898), (868, 735040), (896, 712070), (992, 643160), (1085, 588032), (1120, 569656), (1240, 514528), (1280, 498449), (1736, 367520), (1792, 356035), (1984, 321580), (2170, 294016), (2240, 284828), (2297, 277760), (2480, 257264), (3472, 183760), (3968, 160790), (4340, 147008), (4480, 142414), (4594, 138880), (4960, 128632), (6944, 91880), (7936, 80395), (8680, 73504), (8960, 71207), (9188, 69440), (9920, 64316), (11485, 55552), (13888, 45940), (16079, 39680), (17360, 36752), (18376, 34720), (19840, 32158), (22970, 27776)]