99961720

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:448

約数の個数: 64

約数和(自身を含む): 230234400

約数和(自身を除く): 130272680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 109, 202, 218, 227, 404, 436, 454, 505, 545, 808, 872, 908, 1010, 1090, 1135, 1816, 2020, 2180, 2270, 4040, 4360, 4540, 9080, 11009, 22018, 22927, 24743, 44036, 45854, 49486, 55045, 88072, 91708, 98972, 110090, 114635, 123715, 183416, 197944, 220180, 229270, 247430, 440360, 458540, 494860, 917080, 989720, 2499043, 4998086, 9996172, 12495215, 19992344, 24990430, 49980860, 99961720]

約数ペア:

[(1, 99961720), (2, 49980860), (4, 24990430), (5, 19992344), (8, 12495215), (10, 9996172), (20, 4998086), (40, 2499043), (101, 989720), (109, 917080), (202, 494860), (218, 458540), (227, 440360), (404, 247430), (436, 229270), (454, 220180), (505, 197944), (545, 183416), (808, 123715), (872, 114635), (908, 110090), (1010, 98972), (1090, 91708), (1135, 88072), (1816, 55045), (2020, 49486), (2180, 45854), (2270, 44036), (4040, 24743), (4360, 22927), (4540, 22018), (9080, 11009)]