20963172520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{773}}^1\times {\mathrm{15767}}^1$

素因数の和:16594

約数の個数: 64

約数和(自身を含む): 48329550720

約数和(自身を除く): 27366378200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 773, 860, 1546, 1720, 3092, 3865, 6184, 7730, 15460, 15767, 30920, 31534, 33239, 63068, 66478, 78835, 126136, 132956, 157670, 166195, 265912, 315340, 332390, 630680, 664780, 677981, 1329560, 1355962, 2711924, 3389905, 5423848, 6779810, 12187891, 13559620, 24375782, 27119240, 48751564, 60939455, 97503128, 121878910, 243757820, 487515640, 524079313, 1048158626, 2096317252, 2620396565, 4192634504, 5240793130, 10481586260, 20963172520]

約数ペア:

[(1, 20963172520), (2, 10481586260), (4, 5240793130), (5, 4192634504), (8, 2620396565), (10, 2096317252), (20, 1048158626), (40, 524079313), (43, 487515640), (86, 243757820), (172, 121878910), (215, 97503128), (344, 60939455), (430, 48751564), (773, 27119240), (860, 24375782), (1546, 13559620), (1720, 12187891), (3092, 6779810), (3865, 5423848), (6184, 3389905), (7730, 2711924), (15460, 1355962), (15767, 1329560), (30920, 677981), (31534, 664780), (33239, 630680), (63068, 332390), (66478, 315340), (78835, 265912), (126136, 166195), (132956, 157670)]