201819825

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{661}}^1$

素因数の和:759

約数の個数: 72

約数和(自身を含む): 384171840

約数和(自身を除く): 182352015

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 59, 69, 75, 115, 177, 207, 225, 295, 345, 531, 575, 661, 885, 1035, 1357, 1475, 1725, 1983, 2655, 3305, 4071, 4425, 5175, 5949, 6785, 9915, 12213, 13275, 15203, 16525, 20355, 29745, 33925, 38999, 45609, 49575, 61065, 76015, 101775, 116997, 136827, 148725, 194995, 228045, 305325, 350991, 380075, 584985, 684135, 896977, 974975, 1140225, 1754955, 2690931, 2924925, 3420675, 4484885, 8072793, 8774775, 13454655, 22424425, 40363965, 67273275, 201819825]

約数ペア:

[(1, 201819825), (3, 67273275), (5, 40363965), (9, 22424425), (15, 13454655), (23, 8774775), (25, 8072793), (45, 4484885), (59, 3420675), (69, 2924925), (75, 2690931), (115, 1754955), (177, 1140225), (207, 974975), (225, 896977), (295, 684135), (345, 584985), (531, 380075), (575, 350991), (661, 305325), (885, 228045), (1035, 194995), (1357, 148725), (1475, 136827), (1725, 116997), (1983, 101775), (2655, 76015), (3305, 61065), (4071, 49575), (4425, 45609), (5175, 38999), (5949, 33925), (6785, 29745), (9915, 20355), (12213, 16525), (13275, 15203)]