20172495175

素因数分解:

$5^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{3469}}^1$

素因数の和:3641

約数の個数: 72

約数和(自身を含む): 30019775040

約数和(自身を除く): 9847279865

約数列:

[1, 5, 7, 25, 35, 47, 49, 101, 175, 235, 245, 329, 505, 707, 1175, 1225, 1645, 2303, 2525, 3469, 3535, 4747, 4949, 8225, 11515, 17345, 17675, 23735, 24283, 24745, 33229, 57575, 86725, 118675, 121415, 123725, 163043, 166145, 169981, 232603, 350369, 607075, 815215, 830725, 849905, 1141301, 1163015, 1751845, 2452583, 4076075, 4249525, 5706505, 5815075, 7989107, 8759225, 12262915, 16467343, 17168081, 28532525, 39945535, 61314575, 82336715, 85840405, 115271401, 199727675, 411683575, 429202025, 576357005, 806899807, 2881785025, 4034499035, 20172495175]

約数ペア:

[(1, 20172495175), (5, 4034499035), (7, 2881785025), (25, 806899807), (35, 576357005), (47, 429202025), (49, 411683575), (101, 199727675), (175, 115271401), (235, 85840405), (245, 82336715), (329, 61314575), (505, 39945535), (707, 28532525), (1175, 17168081), (1225, 16467343), (1645, 12262915), (2303, 8759225), (2525, 7989107), (3469, 5815075), (3535, 5706505), (4747, 4249525), (4949, 4076075), (8225, 2452583), (11515, 1751845), (17345, 1163015), (17675, 1141301), (23735, 849905), (24283, 830725), (24745, 815215), (33229, 607075), (57575, 350369), (86725, 232603), (118675, 169981), (121415, 166145), (123725, 163043)]