28539540

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:323

約数の個数: 120

約数和(自身を含む): 91069440

約数和(自身を除く): 62529900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 79, 81, 90, 108, 135, 158, 162, 180, 223, 237, 270, 316, 324, 395, 405, 446, 474, 540, 669, 711, 790, 810, 892, 948, 1115, 1185, 1338, 1422, 1580, 1620, 2007, 2133, 2230, 2370, 2676, 2844, 3345, 3555, 4014, 4266, 4460, 4740, 6021, 6399, 6690, 7110, 8028, 8532, 10035, 10665, 12042, 12798, 13380, 14220, 17617, 18063, 20070, 21330, 24084, 25596, 30105, 31995, 35234, 36126, 40140, 42660, 52851, 60210, 63990, 70468, 72252, 88085, 90315, 105702, 120420, 127980, 158553, 176170, 180630, 211404, 264255, 317106, 352340, 361260, 475659, 528510, 634212, 792765, 951318, 1057020, 1426977, 1585530, 1902636, 2378295, 2853954, 3171060, 4756590, 5707908, 7134885, 9513180, 14269770, 28539540]

約数ペア:

[(1, 28539540), (2, 14269770), (3, 9513180), (4, 7134885), (5, 5707908), (6, 4756590), (9, 3171060), (10, 2853954), (12, 2378295), (15, 1902636), (18, 1585530), (20, 1426977), (27, 1057020), (30, 951318), (36, 792765), (45, 634212), (54, 528510), (60, 475659), (79, 361260), (81, 352340), (90, 317106), (108, 264255), (135, 211404), (158, 180630), (162, 176170), (180, 158553), (223, 127980), (237, 120420), (270, 105702), (316, 90315), (324, 88085), (395, 72252), (405, 70468), (446, 63990), (474, 60210), (540, 52851), (669, 42660), (711, 40140), (790, 36126), (810, 35234), (892, 31995), (948, 30105), (1115, 25596), (1185, 24084), (1338, 21330), (1422, 20070), (1580, 18063), (1620, 17617), (2007, 14220), (2133, 13380), (2230, 12798), (2370, 12042), (2676, 10665), (2844, 10035), (3345, 8532), (3555, 8028), (4014, 7110), (4266, 6690), (4460, 6399), (4740, 6021)]