90905850

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{28859}}^1$

素因数の和:28884

約数の個数: 72

約数和(自身を含む): 279133920

約数和(自身を除く): 188228070

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 126, 150, 175, 210, 225, 315, 350, 450, 525, 630, 1050, 1575, 3150, 28859, 57718, 86577, 144295, 173154, 202013, 259731, 288590, 404026, 432885, 519462, 606039, 721475, 865770, 1010065, 1212078, 1298655, 1442950, 1818117, 2020130, 2164425, 2597310, 3030195, 3636234, 4328850, 5050325, 6060390, 6493275, 9090585, 10100650, 12986550, 15150975, 18181170, 30301950, 45452925, 90905850]

約数ペア:

[(1, 90905850), (2, 45452925), (3, 30301950), (5, 18181170), (6, 15150975), (7, 12986550), (9, 10100650), (10, 9090585), (14, 6493275), (15, 6060390), (18, 5050325), (21, 4328850), (25, 3636234), (30, 3030195), (35, 2597310), (42, 2164425), (45, 2020130), (50, 1818117), (63, 1442950), (70, 1298655), (75, 1212078), (90, 1010065), (105, 865770), (126, 721475), (150, 606039), (175, 519462), (210, 432885), (225, 404026), (315, 288590), (350, 259731), (450, 202013), (525, 173154), (630, 144295), (1050, 86577), (1575, 57718), (3150, 28859)]