87810400

素因数分解:

$2^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:201

約数の個数: 144

約数和(自身を含む): 232016400

約数和(自身を除く): 144206000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 53, 76, 80, 95, 100, 106, 109, 152, 160, 190, 200, 212, 218, 265, 304, 380, 400, 424, 436, 475, 530, 545, 608, 760, 800, 848, 872, 950, 1007, 1060, 1090, 1325, 1520, 1696, 1744, 1900, 2014, 2071, 2120, 2180, 2650, 2725, 3040, 3488, 3800, 4028, 4142, 4240, 4360, 5035, 5300, 5450, 5777, 7600, 8056, 8284, 8480, 8720, 10070, 10355, 10600, 10900, 11554, 15200, 16112, 16568, 17440, 20140, 20710, 21200, 21800, 23108, 25175, 28885, 32224, 33136, 40280, 41420, 42400, 43600, 46216, 50350, 51775, 57770, 66272, 80560, 82840, 87200, 92432, 100700, 103550, 109763, 115540, 144425, 161120, 165680, 184864, 201400, 207100, 219526, 231080, 288850, 331360, 402800, 414200, 439052, 462160, 548815, 577700, 805600, 828400, 878104, 924320, 1097630, 1155400, 1656800, 1756208, 2195260, 2310800, 2744075, 3512416, 4390520, 4621600, 5488150, 8781040, 10976300, 17562080, 21952600, 43905200, 87810400]

約数ペア:

[(1, 87810400), (2, 43905200), (4, 21952600), (5, 17562080), (8, 10976300), (10, 8781040), (16, 5488150), (19, 4621600), (20, 4390520), (25, 3512416), (32, 2744075), (38, 2310800), (40, 2195260), (50, 1756208), (53, 1656800), (76, 1155400), (80, 1097630), (95, 924320), (100, 878104), (106, 828400), (109, 805600), (152, 577700), (160, 548815), (190, 462160), (200, 439052), (212, 414200), (218, 402800), (265, 331360), (304, 288850), (380, 231080), (400, 219526), (424, 207100), (436, 201400), (475, 184864), (530, 165680), (545, 161120), (608, 144425), (760, 115540), (800, 109763), (848, 103550), (872, 100700), (950, 92432), (1007, 87200), (1060, 82840), (1090, 80560), (1325, 66272), (1520, 57770), (1696, 51775), (1744, 50350), (1900, 46216), (2014, 43600), (2071, 42400), (2120, 41420), (2180, 40280), (2650, 33136), (2725, 32224), (3040, 28885), (3488, 25175), (3800, 23108), (4028, 21800), (4142, 21200), (4240, 20710), (4360, 20140), (5035, 17440), (5300, 16568), (5450, 16112), (5777, 15200), (7600, 11554), (8056, 10900), (8284, 10600), (8480, 10355), (8720, 10070)]