664689920

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{181}}^1$

素因数の和:372

約数の個数: 144

約数和(自身を含む): 1696356480

約数和(自身を除く): 1031666560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 151, 152, 160, 181, 190, 256, 302, 304, 320, 362, 380, 604, 608, 640, 724, 755, 760, 905, 1208, 1216, 1280, 1448, 1510, 1520, 1810, 2416, 2432, 2869, 2896, 3020, 3040, 3439, 3620, 4832, 4864, 5738, 5792, 6040, 6080, 6878, 7240, 9664, 11476, 11584, 12080, 12160, 13756, 14345, 14480, 17195, 19328, 22952, 23168, 24160, 24320, 27331, 27512, 28690, 28960, 34390, 38656, 45904, 46336, 48320, 54662, 55024, 57380, 57920, 68780, 91808, 96640, 109324, 110048, 114760, 115840, 136655, 137560, 183616, 193280, 218648, 220096, 229520, 231680, 273310, 275120, 367232, 437296, 440192, 459040, 519289, 546620, 550240, 734464, 874592, 880384, 918080, 1038578, 1093240, 1100480, 1749184, 1836160, 2077156, 2186480, 2200960, 2596445, 3498368, 3672320, 4154312, 4372960, 4401920, 5192890, 6996736, 8308624, 8745920, 10385780, 16617248, 17491840, 20771560, 33234496, 34983680, 41543120, 66468992, 83086240, 132937984, 166172480, 332344960, 664689920]

約数ペア:

[(1, 664689920), (2, 332344960), (4, 166172480), (5, 132937984), (8, 83086240), (10, 66468992), (16, 41543120), (19, 34983680), (20, 33234496), (32, 20771560), (38, 17491840), (40, 16617248), (64, 10385780), (76, 8745920), (80, 8308624), (95, 6996736), (128, 5192890), (151, 4401920), (152, 4372960), (160, 4154312), (181, 3672320), (190, 3498368), (256, 2596445), (302, 2200960), (304, 2186480), (320, 2077156), (362, 1836160), (380, 1749184), (604, 1100480), (608, 1093240), (640, 1038578), (724, 918080), (755, 880384), (760, 874592), (905, 734464), (1208, 550240), (1216, 546620), (1280, 519289), (1448, 459040), (1510, 440192), (1520, 437296), (1810, 367232), (2416, 275120), (2432, 273310), (2869, 231680), (2896, 229520), (3020, 220096), (3040, 218648), (3439, 193280), (3620, 183616), (4832, 137560), (4864, 136655), (5738, 115840), (5792, 114760), (6040, 110048), (6080, 109324), (6878, 96640), (7240, 91808), (9664, 68780), (11476, 57920), (11584, 57380), (12080, 55024), (12160, 54662), (13756, 48320), (14345, 46336), (14480, 45904), (17195, 38656), (19328, 34390), (22952, 28960), (23168, 28690), (24160, 27512), (24320, 27331)]