20304284

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{461}}^1$

素因数の和:507

約数の個数: 72

約数和(自身を含む): 48173664

約数和(自身を除く): 27869380

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 121, 143, 154, 182, 242, 286, 308, 364, 461, 484, 572, 847, 922, 1001, 1573, 1694, 1844, 2002, 3146, 3227, 3388, 4004, 5071, 5993, 6292, 6454, 10142, 11011, 11986, 12908, 20284, 22022, 23972, 35497, 41951, 44044, 55781, 65923, 70994, 83902, 111562, 131846, 141988, 167804, 223124, 263692, 390467, 461461, 725153, 780934, 922922, 1450306, 1561868, 1845844, 2900612, 5076071, 10152142, 20304284]

約数ペア:

[(1, 20304284), (2, 10152142), (4, 5076071), (7, 2900612), (11, 1845844), (13, 1561868), (14, 1450306), (22, 922922), (26, 780934), (28, 725153), (44, 461461), (52, 390467), (77, 263692), (91, 223124), (121, 167804), (143, 141988), (154, 131846), (182, 111562), (242, 83902), (286, 70994), (308, 65923), (364, 55781), (461, 44044), (484, 41951), (572, 35497), (847, 23972), (922, 22022), (1001, 20284), (1573, 12908), (1694, 11986), (1844, 11011), (2002, 10142), (3146, 6454), (3227, 6292), (3388, 5993), (4004, 5071)]