20340075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:133

約数の個数: 96

約数和(自身を含む): 42425856

約数和(自身を除く): 22085781

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 43, 51, 53, 75, 85, 105, 119, 129, 159, 175, 215, 255, 265, 301, 357, 371, 425, 525, 595, 645, 731, 795, 901, 903, 1075, 1113, 1275, 1325, 1505, 1785, 1855, 2193, 2279, 2703, 2975, 3225, 3655, 3975, 4505, 4515, 5117, 5565, 6307, 6837, 7525, 8925, 9275, 10965, 11395, 13515, 15351, 15953, 18275, 18921, 22525, 22575, 25585, 27825, 31535, 34185, 38743, 47859, 54825, 56975, 67575, 76755, 79765, 94605, 116229, 127925, 157675, 170925, 193715, 239295, 271201, 383775, 398825, 473025, 581145, 813603, 968575, 1196475, 1356005, 2905725, 4068015, 6780025, 20340075]

約数ペア:

[(1, 20340075), (3, 6780025), (5, 4068015), (7, 2905725), (15, 1356005), (17, 1196475), (21, 968575), (25, 813603), (35, 581145), (43, 473025), (51, 398825), (53, 383775), (75, 271201), (85, 239295), (105, 193715), (119, 170925), (129, 157675), (159, 127925), (175, 116229), (215, 94605), (255, 79765), (265, 76755), (301, 67575), (357, 56975), (371, 54825), (425, 47859), (525, 38743), (595, 34185), (645, 31535), (731, 27825), (795, 25585), (901, 22575), (903, 22525), (1075, 18921), (1113, 18275), (1275, 15953), (1325, 15351), (1505, 13515), (1785, 11395), (1855, 10965), (2193, 9275), (2279, 8925), (2703, 7525), (2975, 6837), (3225, 6307), (3655, 5565), (3975, 5117), (4505, 4515)]