28100880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1259}}^1$

素因数の和:1309

約数の個数: 120

約数和(自身を含む): 97493760

約数和(自身を除く): 69392880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 465, 496, 558, 620, 720, 744, 930, 1116, 1240, 1259, 1395, 1488, 1860, 2232, 2480, 2518, 2790, 3720, 3777, 4464, 5036, 5580, 6295, 7440, 7554, 10072, 11160, 11331, 12590, 15108, 18885, 20144, 22320, 22662, 25180, 30216, 37770, 39029, 45324, 50360, 56655, 60432, 75540, 78058, 90648, 100720, 113310, 117087, 151080, 156116, 181296, 195145, 226620, 234174, 302160, 312232, 351261, 390290, 453240, 468348, 585435, 624464, 702522, 780580, 906480, 936696, 1170870, 1405044, 1561160, 1756305, 1873392, 2341740, 2810088, 3122320, 3512610, 4683480, 5620176, 7025220, 9366960, 14050440, 28100880]

約数ペア:

[(1, 28100880), (2, 14050440), (3, 9366960), (4, 7025220), (5, 5620176), (6, 4683480), (8, 3512610), (9, 3122320), (10, 2810088), (12, 2341740), (15, 1873392), (16, 1756305), (18, 1561160), (20, 1405044), (24, 1170870), (30, 936696), (31, 906480), (36, 780580), (40, 702522), (45, 624464), (48, 585435), (60, 468348), (62, 453240), (72, 390290), (80, 351261), (90, 312232), (93, 302160), (120, 234174), (124, 226620), (144, 195145), (155, 181296), (180, 156116), (186, 151080), (240, 117087), (248, 113310), (279, 100720), (310, 90648), (360, 78058), (372, 75540), (465, 60432), (496, 56655), (558, 50360), (620, 45324), (720, 39029), (744, 37770), (930, 30216), (1116, 25180), (1240, 22662), (1259, 22320), (1395, 20144), (1488, 18885), (1860, 15108), (2232, 12590), (2480, 11331), (2518, 11160), (2790, 10072), (3720, 7554), (3777, 7440), (4464, 6295), (5036, 5580)]