209542640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4447}}^1$

素因数の和:4510

約数の個数: 80

約数和(自身を含む): 529489920

約数和(自身を除く): 319947280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 760, 1178, 1240, 1520, 2356, 2480, 2945, 4447, 4712, 5890, 8894, 9424, 11780, 17788, 22235, 23560, 35576, 44470, 47120, 71152, 84493, 88940, 137857, 168986, 177880, 275714, 337972, 355760, 422465, 551428, 675944, 689285, 844930, 1102856, 1351888, 1378570, 1689860, 2205712, 2619283, 2757140, 3379720, 5238566, 5514280, 6759440, 10477132, 11028560, 13096415, 20954264, 26192830, 41908528, 52385660, 104771320, 209542640]

約数ペア:

[(1, 209542640), (2, 104771320), (4, 52385660), (5, 41908528), (8, 26192830), (10, 20954264), (16, 13096415), (19, 11028560), (20, 10477132), (31, 6759440), (38, 5514280), (40, 5238566), (62, 3379720), (76, 2757140), (80, 2619283), (95, 2205712), (124, 1689860), (152, 1378570), (155, 1351888), (190, 1102856), (248, 844930), (304, 689285), (310, 675944), (380, 551428), (496, 422465), (589, 355760), (620, 337972), (760, 275714), (1178, 177880), (1240, 168986), (1520, 137857), (2356, 88940), (2480, 84493), (2945, 71152), (4447, 47120), (4712, 44470), (5890, 35576), (8894, 23560), (9424, 22235), (11780, 17788)]