18201950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{683}}^1$

素因数の和:749

約数の個数: 48

約数和(自身を含む): 37403856

約数和(自身を除く): 19201906

約数列:

[1, 2, 5, 10, 13, 25, 26, 41, 50, 65, 82, 130, 205, 325, 410, 533, 650, 683, 1025, 1066, 1366, 2050, 2665, 3415, 5330, 6830, 8879, 13325, 17075, 17758, 26650, 28003, 34150, 44395, 56006, 88790, 140015, 221975, 280030, 364039, 443950, 700075, 728078, 1400150, 1820195, 3640390, 9100975, 18201950]

約数ペア:

[(1, 18201950), (2, 9100975), (5, 3640390), (10, 1820195), (13, 1400150), (25, 728078), (26, 700075), (41, 443950), (50, 364039), (65, 280030), (82, 221975), (130, 140015), (205, 88790), (325, 56006), (410, 44395), (533, 34150), (650, 28003), (683, 26650), (1025, 17758), (1066, 17075), (1366, 13325), (2050, 8879), (2665, 6830), (3415, 5330)]