77321020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{257}}^1\times {\mathrm{307}}^1$

素因数の和:587

約数の個数: 72

約数和(自身を含む): 190236816

約数和(自身を除く): 112915796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 257, 307, 490, 514, 614, 980, 1028, 1228, 1285, 1535, 1799, 2149, 2570, 3070, 3598, 4298, 5140, 6140, 7196, 8596, 8995, 10745, 12593, 15043, 17990, 21490, 25186, 30086, 35980, 42980, 50372, 60172, 62965, 75215, 78899, 125930, 150430, 157798, 251860, 300860, 315596, 394495, 552293, 788990, 1104586, 1577980, 2209172, 2761465, 3866051, 5522930, 7732102, 11045860, 15464204, 19330255, 38660510, 77321020]

約数ペア:

[(1, 77321020), (2, 38660510), (4, 19330255), (5, 15464204), (7, 11045860), (10, 7732102), (14, 5522930), (20, 3866051), (28, 2761465), (35, 2209172), (49, 1577980), (70, 1104586), (98, 788990), (140, 552293), (196, 394495), (245, 315596), (257, 300860), (307, 251860), (490, 157798), (514, 150430), (614, 125930), (980, 78899), (1028, 75215), (1228, 62965), (1285, 60172), (1535, 50372), (1799, 42980), (2149, 35980), (2570, 30086), (3070, 25186), (3598, 21490), (4298, 17990), (5140, 15043), (6140, 12593), (7196, 10745), (8596, 8995)]