505840640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3187}}^1$

素因数の和:3243

約数の個数: 88

約数和(自身を含む): 1252960512

約数和(自身を除く): 747119872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1024, 1240, 1280, 1984, 2480, 2560, 3187, 3968, 4960, 5120, 6374, 7936, 9920, 12748, 15872, 15935, 19840, 25496, 31744, 31870, 39680, 50992, 63740, 79360, 98797, 101984, 127480, 158720, 197594, 203968, 254960, 395188, 407936, 493985, 509920, 790376, 815872, 987970, 1019840, 1580752, 1631744, 1975940, 2039680, 3161504, 3263488, 3951880, 4079360, 6323008, 7903760, 8158720, 12646016, 15807520, 16317440, 25292032, 31615040, 50584064, 63230080, 101168128, 126460160, 252920320, 505840640]

約数ペア:

[(1, 505840640), (2, 252920320), (4, 126460160), (5, 101168128), (8, 63230080), (10, 50584064), (16, 31615040), (20, 25292032), (31, 16317440), (32, 15807520), (40, 12646016), (62, 8158720), (64, 7903760), (80, 6323008), (124, 4079360), (128, 3951880), (155, 3263488), (160, 3161504), (248, 2039680), (256, 1975940), (310, 1631744), (320, 1580752), (496, 1019840), (512, 987970), (620, 815872), (640, 790376), (992, 509920), (1024, 493985), (1240, 407936), (1280, 395188), (1984, 254960), (2480, 203968), (2560, 197594), (3187, 158720), (3968, 127480), (4960, 101984), (5120, 98797), (6374, 79360), (7936, 63740), (9920, 50992), (12748, 39680), (15872, 31870), (15935, 31744), (19840, 25496)]