400965760

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{48193}}^1$

素因数の和:48225

約数の個数: 64

約数和(自身を含む): 1032315480

約数和(自身を除く): 631349720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 48193, 96386, 192772, 240965, 385544, 481930, 626509, 771088, 963860, 1253018, 1542176, 1927720, 2506036, 3084352, 3132545, 3855440, 5012072, 6168704, 6265090, 7710880, 10024144, 12530180, 15421760, 20048288, 25060360, 30843520, 40096576, 50120720, 80193152, 100241440, 200482880, 400965760]

約数ペア:

[(1, 400965760), (2, 200482880), (4, 100241440), (5, 80193152), (8, 50120720), (10, 40096576), (13, 30843520), (16, 25060360), (20, 20048288), (26, 15421760), (32, 12530180), (40, 10024144), (52, 7710880), (64, 6265090), (65, 6168704), (80, 5012072), (104, 3855440), (128, 3132545), (130, 3084352), (160, 2506036), (208, 1927720), (260, 1542176), (320, 1253018), (416, 963860), (520, 771088), (640, 626509), (832, 481930), (1040, 385544), (1664, 240965), (2080, 192772), (4160, 96386), (8320, 48193)]