85431040

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2153}}^1$

素因数の和:2205

約数の個数: 72

約数和(自身を含む): 211333248

約数和(自身を除く): 125902208

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, 2153, 2480, 3968, 4306, 4960, 7936, 8612, 9920, 10765, 17224, 19840, 21530, 34448, 39680, 43060, 66743, 68896, 86120, 133486, 137792, 172240, 266972, 275584, 333715, 344480, 533944, 551168, 667430, 688960, 1067888, 1334860, 1377920, 2135776, 2669720, 2755840, 4271552, 5339440, 8543104, 10678880, 17086208, 21357760, 42715520, 85431040]

約数ペア:

[(1, 85431040), (2, 42715520), (4, 21357760), (5, 17086208), (8, 10678880), (10, 8543104), (16, 5339440), (20, 4271552), (31, 2755840), (32, 2669720), (40, 2135776), (62, 1377920), (64, 1334860), (80, 1067888), (124, 688960), (128, 667430), (155, 551168), (160, 533944), (248, 344480), (256, 333715), (310, 275584), (320, 266972), (496, 172240), (620, 137792), (640, 133486), (992, 86120), (1240, 68896), (1280, 66743), (1984, 43060), (2153, 39680), (2480, 34448), (3968, 21530), (4306, 19840), (4960, 17224), (7936, 10765), (8612, 9920)]