23172020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 54670560

約数和(自身を除く): 31498540

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 211, 289, 323, 340, 380, 422, 578, 646, 844, 1055, 1156, 1292, 1445, 1615, 2110, 2890, 3230, 3587, 4009, 4220, 5491, 5780, 6460, 7174, 8018, 10982, 14348, 16036, 17935, 20045, 21964, 27455, 35870, 40090, 54910, 60979, 68153, 71740, 80180, 109820, 121958, 136306, 243916, 272612, 304895, 340765, 609790, 681530, 1158601, 1219580, 1363060, 2317202, 4634404, 5793005, 11586010, 23172020]

約数ペア:

[(1, 23172020), (2, 11586010), (4, 5793005), (5, 4634404), (10, 2317202), (17, 1363060), (19, 1219580), (20, 1158601), (34, 681530), (38, 609790), (68, 340765), (76, 304895), (85, 272612), (95, 243916), (170, 136306), (190, 121958), (211, 109820), (289, 80180), (323, 71740), (340, 68153), (380, 60979), (422, 54910), (578, 40090), (646, 35870), (844, 27455), (1055, 21964), (1156, 20045), (1292, 17935), (1445, 16036), (1615, 14348), (2110, 10982), (2890, 8018), (3230, 7174), (3587, 6460), (4009, 5780), (4220, 5491)]