450279680

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20693}}^1$

素因数の和:20731

約数の個数: 72

約数和(自身を含む): 1142060472

約数和(自身を除く): 691780792

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 544, 640, 680, 1088, 1280, 1360, 2176, 2720, 4352, 5440, 10880, 20693, 21760, 41386, 82772, 103465, 165544, 206930, 331088, 351781, 413860, 662176, 703562, 827720, 1324352, 1407124, 1655440, 1758905, 2648704, 2814248, 3310880, 3517810, 5297408, 5628496, 6621760, 7035620, 11256992, 13243520, 14071240, 22513984, 26487040, 28142480, 45027968, 56284960, 90055936, 112569920, 225139840, 450279680]

約数ペア:

[(1, 450279680), (2, 225139840), (4, 112569920), (5, 90055936), (8, 56284960), (10, 45027968), (16, 28142480), (17, 26487040), (20, 22513984), (32, 14071240), (34, 13243520), (40, 11256992), (64, 7035620), (68, 6621760), (80, 5628496), (85, 5297408), (128, 3517810), (136, 3310880), (160, 2814248), (170, 2648704), (256, 1758905), (272, 1655440), (320, 1407124), (340, 1324352), (544, 827720), (640, 703562), (680, 662176), (1088, 413860), (1280, 351781), (1360, 331088), (2176, 206930), (2720, 165544), (4352, 103465), (5440, 82772), (10880, 41386), (20693, 21760)]