1900791040

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47903}}^1$

素因数の和:47955

約数の個数: 72

約数和(自身を含む): 4699957248

約数和(自身を除く): 2799166208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 39680, 47903, 95806, 191612, 239515, 383224, 479030, 766448, 958060, 1484993, 1532896, 1916120, 2969986, 3065792, 3832240, 5939972, 6131584, 7424965, 7664480, 11879944, 12263168, 14849930, 15328960, 23759888, 29699860, 30657920, 47519776, 59399720, 61315840, 95039552, 118799440, 190079104, 237598880, 380158208, 475197760, 950395520, 1900791040]

約数ペア:

[(1, 1900791040), (2, 950395520), (4, 475197760), (5, 380158208), (8, 237598880), (10, 190079104), (16, 118799440), (20, 95039552), (31, 61315840), (32, 59399720), (40, 47519776), (62, 30657920), (64, 29699860), (80, 23759888), (124, 15328960), (128, 14849930), (155, 12263168), (160, 11879944), (248, 7664480), (256, 7424965), (310, 6131584), (320, 5939972), (496, 3832240), (620, 3065792), (640, 2969986), (992, 1916120), (1240, 1532896), (1280, 1484993), (1984, 958060), (2480, 766448), (3968, 479030), (4960, 383224), (7936, 239515), (9920, 191612), (19840, 95806), (39680, 47903)]