55640320

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2557}}^1$

素因数の和:2595

約数の個数: 72

約数和(自身を含む): 141170904

約数和(自身を除く): 85530584

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 544, 640, 680, 1088, 1280, 1360, 2176, 2557, 2720, 4352, 5114, 5440, 10228, 10880, 12785, 20456, 21760, 25570, 40912, 43469, 51140, 81824, 86938, 102280, 163648, 173876, 204560, 217345, 327296, 347752, 409120, 434690, 654592, 695504, 818240, 869380, 1391008, 1636480, 1738760, 2782016, 3272960, 3477520, 5564032, 6955040, 11128064, 13910080, 27820160, 55640320]

約数ペア:

[(1, 55640320), (2, 27820160), (4, 13910080), (5, 11128064), (8, 6955040), (10, 5564032), (16, 3477520), (17, 3272960), (20, 2782016), (32, 1738760), (34, 1636480), (40, 1391008), (64, 869380), (68, 818240), (80, 695504), (85, 654592), (128, 434690), (136, 409120), (160, 347752), (170, 327296), (256, 217345), (272, 204560), (320, 173876), (340, 163648), (544, 102280), (640, 86938), (680, 81824), (1088, 51140), (1280, 43469), (1360, 40912), (2176, 25570), (2557, 21760), (2720, 20456), (4352, 12785), (5114, 10880), (5440, 10228)]