400014080

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{593}}^1$

素因数の和:662

約数の個数: 144

約数和(自身を含む): 1049013504

約数和(自身を除く): 648999424

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 64, 68, 80, 85, 124, 128, 136, 155, 160, 170, 248, 256, 272, 310, 320, 340, 496, 527, 544, 593, 620, 640, 680, 992, 1054, 1088, 1186, 1240, 1280, 1360, 1984, 2108, 2176, 2372, 2480, 2635, 2720, 2965, 3968, 4216, 4352, 4744, 4960, 5270, 5440, 5930, 7936, 8432, 9488, 9920, 10081, 10540, 10880, 11860, 16864, 18383, 18976, 19840, 20162, 21080, 21760, 23720, 33728, 36766, 37952, 39680, 40324, 42160, 47440, 50405, 67456, 73532, 75904, 80648, 84320, 91915, 94880, 100810, 134912, 147064, 151808, 161296, 168640, 183830, 189760, 201620, 294128, 312511, 322592, 337280, 367660, 379520, 403240, 588256, 625022, 645184, 674560, 735320, 759040, 806480, 1176512, 1250044, 1290368, 1470640, 1562555, 1612960, 2353024, 2500088, 2580736, 2941280, 3125110, 3225920, 4706048, 5000176, 5882560, 6250220, 6451840, 10000352, 11765120, 12500440, 12903680, 20000704, 23530240, 25000880, 40001408, 50001760, 80002816, 100003520, 200007040, 400014080]

約数ペア:

[(1, 400014080), (2, 200007040), (4, 100003520), (5, 80002816), (8, 50001760), (10, 40001408), (16, 25000880), (17, 23530240), (20, 20000704), (31, 12903680), (32, 12500440), (34, 11765120), (40, 10000352), (62, 6451840), (64, 6250220), (68, 5882560), (80, 5000176), (85, 4706048), (124, 3225920), (128, 3125110), (136, 2941280), (155, 2580736), (160, 2500088), (170, 2353024), (248, 1612960), (256, 1562555), (272, 1470640), (310, 1290368), (320, 1250044), (340, 1176512), (496, 806480), (527, 759040), (544, 735320), (593, 674560), (620, 645184), (640, 625022), (680, 588256), (992, 403240), (1054, 379520), (1088, 367660), (1186, 337280), (1240, 322592), (1280, 312511), (1360, 294128), (1984, 201620), (2108, 189760), (2176, 183830), (2372, 168640), (2480, 161296), (2635, 151808), (2720, 147064), (2965, 134912), (3968, 100810), (4216, 94880), (4352, 91915), (4744, 84320), (4960, 80648), (5270, 75904), (5440, 73532), (5930, 67456), (7936, 50405), (8432, 47440), (9488, 42160), (9920, 40324), (10081, 39680), (10540, 37952), (10880, 36766), (11860, 33728), (16864, 23720), (18383, 21760), (18976, 21080), (19840, 20162)]