20468340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6689}}^1$

素因数の和:6721

約数の個数: 72

約数和(自身を含む): 65749320

約数和(自身を除く): 45280980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 6689, 13378, 20067, 26756, 33445, 40134, 60201, 66890, 80268, 100335, 113713, 120402, 133780, 200670, 227426, 240804, 301005, 341139, 401340, 454852, 568565, 602010, 682278, 1023417, 1137130, 1204020, 1364556, 1705695, 2046834, 2274260, 3411390, 4093668, 5117085, 6822780, 10234170, 20468340]

約数ペア:

[(1, 20468340), (2, 10234170), (3, 6822780), (4, 5117085), (5, 4093668), (6, 3411390), (9, 2274260), (10, 2046834), (12, 1705695), (15, 1364556), (17, 1204020), (18, 1137130), (20, 1023417), (30, 682278), (34, 602010), (36, 568565), (45, 454852), (51, 401340), (60, 341139), (68, 301005), (85, 240804), (90, 227426), (102, 200670), (153, 133780), (170, 120402), (180, 113713), (204, 100335), (255, 80268), (306, 66890), (340, 60201), (510, 40134), (612, 33445), (765, 26756), (1020, 20067), (1530, 13378), (3060, 6689)]