561212500

素因数分解:

$2^2\times 5^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:204

約数の個数: 144

約数和(自身を含む): 1378036800

約数和(自身を除く): 816824300

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 25, 34, 38, 50, 68, 76, 85, 95, 100, 125, 139, 170, 190, 250, 278, 323, 340, 380, 425, 475, 500, 556, 625, 646, 695, 850, 950, 1250, 1292, 1390, 1615, 1700, 1900, 2125, 2363, 2375, 2500, 2641, 2780, 3125, 3230, 3475, 4250, 4726, 4750, 5282, 6250, 6460, 6950, 8075, 8500, 9452, 9500, 10564, 10625, 11815, 11875, 12500, 13205, 13900, 16150, 17375, 21250, 23630, 23750, 26410, 32300, 34750, 40375, 42500, 44897, 47260, 47500, 52820, 53125, 59075, 59375, 66025, 69500, 80750, 86875, 89794, 106250, 118150, 118750, 132050, 161500, 173750, 179588, 201875, 212500, 224485, 236300, 237500, 264100, 295375, 330125, 347500, 403750, 434375, 448970, 590750, 660250, 807500, 868750, 897940, 1009375, 1122425, 1181500, 1320500, 1476875, 1650625, 1737500, 2018750, 2244850, 2953750, 3301250, 4037500, 4489700, 5612125, 5907500, 6602500, 7384375, 8253125, 11224250, 14768750, 16506250, 22448500, 28060625, 29537500, 33012500, 56121250, 112242500, 140303125, 280606250, 561212500]

約数ペア:

[(1, 561212500), (2, 280606250), (4, 140303125), (5, 112242500), (10, 56121250), (17, 33012500), (19, 29537500), (20, 28060625), (25, 22448500), (34, 16506250), (38, 14768750), (50, 11224250), (68, 8253125), (76, 7384375), (85, 6602500), (95, 5907500), (100, 5612125), (125, 4489700), (139, 4037500), (170, 3301250), (190, 2953750), (250, 2244850), (278, 2018750), (323, 1737500), (340, 1650625), (380, 1476875), (425, 1320500), (475, 1181500), (500, 1122425), (556, 1009375), (625, 897940), (646, 868750), (695, 807500), (850, 660250), (950, 590750), (1250, 448970), (1292, 434375), (1390, 403750), (1615, 347500), (1700, 330125), (1900, 295375), (2125, 264100), (2363, 237500), (2375, 236300), (2500, 224485), (2641, 212500), (2780, 201875), (3125, 179588), (3230, 173750), (3475, 161500), (4250, 132050), (4726, 118750), (4750, 118150), (5282, 106250), (6250, 89794), (6460, 86875), (6950, 80750), (8075, 69500), (8500, 66025), (9452, 59375), (9500, 59075), (10564, 53125), (10625, 52820), (11815, 47500), (11875, 47260), (12500, 44897), (13205, 42500), (13900, 40375), (16150, 34750), (17375, 32300), (21250, 26410), (23630, 23750)]