78909920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{433}}^1$

素因数の和:532

約数の個数: 96

約数和(自身を含む): 200799648

約数和(自身を除く): 121889728

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 67, 68, 80, 85, 134, 136, 160, 170, 268, 272, 335, 340, 433, 536, 544, 670, 680, 866, 1072, 1139, 1340, 1360, 1732, 2144, 2165, 2278, 2680, 2720, 3464, 4330, 4556, 5360, 5695, 6928, 7361, 8660, 9112, 10720, 11390, 13856, 14722, 17320, 18224, 22780, 29011, 29444, 34640, 36448, 36805, 45560, 58022, 58888, 69280, 73610, 91120, 116044, 117776, 145055, 147220, 182240, 232088, 235552, 290110, 294440, 464176, 493187, 580220, 588880, 928352, 986374, 1160440, 1177760, 1972748, 2320880, 2465935, 3945496, 4641760, 4931870, 7890992, 9863740, 15781984, 19727480, 39454960, 78909920]

約数ペア:

[(1, 78909920), (2, 39454960), (4, 19727480), (5, 15781984), (8, 9863740), (10, 7890992), (16, 4931870), (17, 4641760), (20, 3945496), (32, 2465935), (34, 2320880), (40, 1972748), (67, 1177760), (68, 1160440), (80, 986374), (85, 928352), (134, 588880), (136, 580220), (160, 493187), (170, 464176), (268, 294440), (272, 290110), (335, 235552), (340, 232088), (433, 182240), (536, 147220), (544, 145055), (670, 117776), (680, 116044), (866, 91120), (1072, 73610), (1139, 69280), (1340, 58888), (1360, 58022), (1732, 45560), (2144, 36805), (2165, 36448), (2278, 34640), (2680, 29444), (2720, 29011), (3464, 22780), (4330, 18224), (4556, 17320), (5360, 14722), (5695, 13856), (6928, 11390), (7361, 10720), (8660, 9112)]