90140680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{13997}}^1$

素因数の和:14038

約数の個数: 64

約数和(自身を含む): 241885440

約数和(自身を除く): 151744760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 13997, 27994, 55988, 69985, 97979, 111976, 139970, 195958, 279940, 321931, 391916, 489895, 559880, 643862, 783832, 979790, 1287724, 1609655, 1959580, 2253517, 2575448, 3219310, 3919160, 4507034, 6438620, 9014068, 11267585, 12877240, 18028136, 22535170, 45070340, 90140680]

約数ペア:

[(1, 90140680), (2, 45070340), (4, 22535170), (5, 18028136), (7, 12877240), (8, 11267585), (10, 9014068), (14, 6438620), (20, 4507034), (23, 3919160), (28, 3219310), (35, 2575448), (40, 2253517), (46, 1959580), (56, 1609655), (70, 1287724), (92, 979790), (115, 783832), (140, 643862), (161, 559880), (184, 489895), (230, 391916), (280, 321931), (322, 279940), (460, 195958), (644, 139970), (805, 111976), (920, 97979), (1288, 69985), (1610, 55988), (3220, 27994), (6440, 13997)]