28696920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{269}}^1$

素因数の和:417

約数の個数: 128

約数和(自身を含む): 99532800

約数和(自身を除く): 70835880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 127, 140, 168, 210, 254, 269, 280, 381, 420, 508, 538, 635, 762, 807, 840, 889, 1016, 1076, 1270, 1345, 1524, 1614, 1778, 1883, 1905, 2152, 2540, 2667, 2690, 3048, 3228, 3556, 3766, 3810, 4035, 4445, 5080, 5334, 5380, 5649, 6456, 7112, 7532, 7620, 8070, 8890, 9415, 10668, 10760, 11298, 13335, 15064, 15240, 16140, 17780, 18830, 21336, 22596, 26670, 28245, 32280, 34163, 35560, 37660, 45192, 53340, 56490, 68326, 75320, 102489, 106680, 112980, 136652, 170815, 204978, 225960, 239141, 273304, 341630, 409956, 478282, 512445, 683260, 717423, 819912, 956564, 1024890, 1195705, 1366520, 1434846, 1913128, 2049780, 2391410, 2869692, 3587115, 4099560, 4782820, 5739384, 7174230, 9565640, 14348460, 28696920]

約数ペア:

[(1, 28696920), (2, 14348460), (3, 9565640), (4, 7174230), (5, 5739384), (6, 4782820), (7, 4099560), (8, 3587115), (10, 2869692), (12, 2391410), (14, 2049780), (15, 1913128), (20, 1434846), (21, 1366520), (24, 1195705), (28, 1024890), (30, 956564), (35, 819912), (40, 717423), (42, 683260), (56, 512445), (60, 478282), (70, 409956), (84, 341630), (105, 273304), (120, 239141), (127, 225960), (140, 204978), (168, 170815), (210, 136652), (254, 112980), (269, 106680), (280, 102489), (381, 75320), (420, 68326), (508, 56490), (538, 53340), (635, 45192), (762, 37660), (807, 35560), (840, 34163), (889, 32280), (1016, 28245), (1076, 26670), (1270, 22596), (1345, 21336), (1524, 18830), (1614, 17780), (1778, 16140), (1883, 15240), (1905, 15064), (2152, 13335), (2540, 11298), (2667, 10760), (2690, 10668), (3048, 9415), (3228, 8890), (3556, 8070), (3766, 7620), (3810, 7532), (4035, 7112), (4445, 6456), (5080, 5649), (5334, 5380)]