141440

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:49

約数の個数: 64

約数和(自身を含む): 385560

約数和(自身を除く): 244120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 128, 130, 136, 160, 170, 208, 221, 260, 272, 320, 340, 416, 442, 520, 544, 640, 680, 832, 884, 1040, 1088, 1105, 1360, 1664, 1768, 2080, 2176, 2210, 2720, 3536, 4160, 4420, 5440, 7072, 8320, 8840, 10880, 14144, 17680, 28288, 35360, 70720, 141440]

約数ペア:

[(1, 141440), (2, 70720), (4, 35360), (5, 28288), (8, 17680), (10, 14144), (13, 10880), (16, 8840), (17, 8320), (20, 7072), (26, 5440), (32, 4420), (34, 4160), (40, 3536), (52, 2720), (64, 2210), (65, 2176), (68, 2080), (80, 1768), (85, 1664), (104, 1360), (128, 1105), (130, 1088), (136, 1040), (160, 884), (170, 832), (208, 680), (221, 640), (260, 544), (272, 520), (320, 442), (340, 416)]