405468180

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1481}}^1$

素因数の和:1528

約数の個数: 180

約数和(自身を含む): 1378268892

約数和(自身を除く): 972800712

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 169, 180, 195, 234, 260, 270, 324, 338, 351, 390, 405, 468, 507, 540, 585, 676, 702, 780, 810, 845, 1014, 1053, 1170, 1404, 1481, 1521, 1620, 1690, 1755, 2028, 2106, 2340, 2535, 2962, 3042, 3380, 3510, 4212, 4443, 4563, 5070, 5265, 5924, 6084, 7020, 7405, 7605, 8886, 9126, 10140, 10530, 13329, 13689, 14810, 15210, 17772, 18252, 19253, 21060, 22215, 22815, 26658, 27378, 29620, 30420, 38506, 39987, 44430, 45630, 53316, 54756, 57759, 66645, 68445, 77012, 79974, 88860, 91260, 96265, 115518, 119961, 133290, 136890, 159948, 173277, 192530, 199935, 231036, 239922, 250289, 266580, 273780, 288795, 346554, 385060, 399870, 479844, 500578, 519831, 577590, 599805, 693108, 750867, 799740, 866385, 1001156, 1039662, 1155180, 1199610, 1251445, 1501734, 1559493, 1732770, 2079324, 2252601, 2399220, 2502890, 2599155, 3003468, 3118986, 3465540, 3754335, 4505202, 5005780, 5198310, 6237972, 6757803, 7508670, 7797465, 9010404, 10396620, 11263005, 13515606, 15017340, 15594930, 20273409, 22526010, 27031212, 31189860, 33789015, 40546818, 45052020, 67578030, 81093636, 101367045, 135156060, 202734090, 405468180]

約数ペア:

[(1, 405468180), (2, 202734090), (3, 135156060), (4, 101367045), (5, 81093636), (6, 67578030), (9, 45052020), (10, 40546818), (12, 33789015), (13, 31189860), (15, 27031212), (18, 22526010), (20, 20273409), (26, 15594930), (27, 15017340), (30, 13515606), (36, 11263005), (39, 10396620), (45, 9010404), (52, 7797465), (54, 7508670), (60, 6757803), (65, 6237972), (78, 5198310), (81, 5005780), (90, 4505202), (108, 3754335), (117, 3465540), (130, 3118986), (135, 3003468), (156, 2599155), (162, 2502890), (169, 2399220), (180, 2252601), (195, 2079324), (234, 1732770), (260, 1559493), (270, 1501734), (324, 1251445), (338, 1199610), (351, 1155180), (390, 1039662), (405, 1001156), (468, 866385), (507, 799740), (540, 750867), (585, 693108), (676, 599805), (702, 577590), (780, 519831), (810, 500578), (845, 479844), (1014, 399870), (1053, 385060), (1170, 346554), (1404, 288795), (1481, 273780), (1521, 266580), (1620, 250289), (1690, 239922), (1755, 231036), (2028, 199935), (2106, 192530), (2340, 173277), (2535, 159948), (2962, 136890), (3042, 133290), (3380, 119961), (3510, 115518), (4212, 96265), (4443, 91260), (4563, 88860), (5070, 79974), (5265, 77012), (5924, 68445), (6084, 66645), (7020, 57759), (7405, 54756), (7605, 53316), (8886, 45630), (9126, 44430), (10140, 39987), (10530, 38506), (13329, 30420), (13689, 29620), (14810, 27378), (15210, 26658), (17772, 22815), (18252, 22215), (19253, 21060)]