20477625

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1$

素因数の和:323

約数の個数: 64

約数和(自身を含む): 40435200

約数和(自身を除く): 19957575

約数列:

[1, 3, 5, 7, 15, 21, 25, 29, 35, 75, 87, 105, 125, 145, 175, 203, 269, 375, 435, 525, 609, 725, 807, 875, 1015, 1345, 1883, 2175, 2625, 3045, 3625, 4035, 5075, 5649, 6725, 7801, 9415, 10875, 15225, 20175, 23403, 25375, 28245, 33625, 39005, 47075, 54607, 76125, 100875, 117015, 141225, 163821, 195025, 235375, 273035, 585075, 706125, 819105, 975125, 1365175, 2925375, 4095525, 6825875, 20477625]

約数ペア:

[(1, 20477625), (3, 6825875), (5, 4095525), (7, 2925375), (15, 1365175), (21, 975125), (25, 819105), (29, 706125), (35, 585075), (75, 273035), (87, 235375), (105, 195025), (125, 163821), (145, 141225), (175, 117015), (203, 100875), (269, 76125), (375, 54607), (435, 47075), (525, 39005), (609, 33625), (725, 28245), (807, 25375), (875, 23403), (1015, 20175), (1345, 15225), (1883, 10875), (2175, 9415), (2625, 7801), (3045, 6725), (3625, 5649), (4035, 5075)]