161530720

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77659}}^1$

素因数の和:77687

約数の個数: 48

約数和(自身を含む): 410976720

約数和(自身を除く): 249446000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 77659, 155318, 310636, 388295, 621272, 776590, 1009567, 1242544, 1553180, 2019134, 2485088, 3106360, 4038268, 5047835, 6212720, 8076536, 10095670, 12425440, 16153072, 20191340, 32306144, 40382680, 80765360, 161530720]

約数ペア:

[(1, 161530720), (2, 80765360), (4, 40382680), (5, 32306144), (8, 20191340), (10, 16153072), (13, 12425440), (16, 10095670), (20, 8076536), (26, 6212720), (32, 5047835), (40, 4038268), (52, 3106360), (65, 2485088), (80, 2019134), (104, 1553180), (130, 1242544), (160, 1009567), (208, 776590), (260, 621272), (416, 388295), (520, 310636), (1040, 155318), (2080, 77659)]