28407540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{283}}^1$

素因数の和:541

約数の個数: 96

約数和(自身を含む): 91607040

約数和(自身を除く): 63199500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 239, 283, 420, 478, 566, 717, 849, 956, 1132, 1195, 1415, 1434, 1673, 1698, 1981, 2390, 2830, 2868, 3346, 3396, 3585, 3962, 4245, 4780, 5019, 5660, 5943, 6692, 7170, 7924, 8365, 8490, 9905, 10038, 11886, 14340, 16730, 16980, 19810, 20076, 23772, 25095, 29715, 33460, 39620, 50190, 59430, 67637, 100380, 118860, 135274, 202911, 270548, 338185, 405822, 473459, 676370, 811644, 946918, 1014555, 1352740, 1420377, 1893836, 2029110, 2367295, 2840754, 4058220, 4734590, 5681508, 7101885, 9469180, 14203770, 28407540]

約数ペア:

[(1, 28407540), (2, 14203770), (3, 9469180), (4, 7101885), (5, 5681508), (6, 4734590), (7, 4058220), (10, 2840754), (12, 2367295), (14, 2029110), (15, 1893836), (20, 1420377), (21, 1352740), (28, 1014555), (30, 946918), (35, 811644), (42, 676370), (60, 473459), (70, 405822), (84, 338185), (105, 270548), (140, 202911), (210, 135274), (239, 118860), (283, 100380), (420, 67637), (478, 59430), (566, 50190), (717, 39620), (849, 33460), (956, 29715), (1132, 25095), (1195, 23772), (1415, 20076), (1434, 19810), (1673, 16980), (1698, 16730), (1981, 14340), (2390, 11886), (2830, 10038), (2868, 9905), (3346, 8490), (3396, 8365), (3585, 7924), (3962, 7170), (4245, 6692), (4780, 5943), (5019, 5660)]