40809520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{811}}^1$

素因数の和:878

約数の個数: 80

約数和(自身を含む): 103305888

約数和(自身を除く): 62496368

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 37, 40, 68, 74, 80, 85, 136, 148, 170, 185, 272, 296, 340, 370, 592, 629, 680, 740, 811, 1258, 1360, 1480, 1622, 2516, 2960, 3145, 3244, 4055, 5032, 6290, 6488, 8110, 10064, 12580, 12976, 13787, 16220, 25160, 27574, 30007, 32440, 50320, 55148, 60014, 64880, 68935, 110296, 120028, 137870, 150035, 220592, 240056, 275740, 300070, 480112, 510119, 551480, 600140, 1020238, 1102960, 1200280, 2040476, 2400560, 2550595, 4080952, 5101190, 8161904, 10202380, 20404760, 40809520]

約数ペア:

[(1, 40809520), (2, 20404760), (4, 10202380), (5, 8161904), (8, 5101190), (10, 4080952), (16, 2550595), (17, 2400560), (20, 2040476), (34, 1200280), (37, 1102960), (40, 1020238), (68, 600140), (74, 551480), (80, 510119), (85, 480112), (136, 300070), (148, 275740), (170, 240056), (185, 220592), (272, 150035), (296, 137870), (340, 120028), (370, 110296), (592, 68935), (629, 64880), (680, 60014), (740, 55148), (811, 50320), (1258, 32440), (1360, 30007), (1480, 27574), (1622, 25160), (2516, 16220), (2960, 13787), (3145, 12976), (3244, 12580), (4055, 10064), (5032, 8110), (6290, 6488)]