19985370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{263}}^1$

素因数の和:439

約数の個数: 64

約数和(自身を含む): 51321600

約数和(自身を除く): 31336230

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 149, 170, 255, 263, 298, 447, 510, 526, 745, 789, 894, 1315, 1490, 1578, 2235, 2533, 2630, 3945, 4470, 4471, 5066, 7599, 7890, 8942, 12665, 13413, 15198, 22355, 25330, 26826, 37995, 39187, 44710, 67065, 75990, 78374, 117561, 134130, 195935, 235122, 391870, 587805, 666179, 1175610, 1332358, 1998537, 3330895, 3997074, 6661790, 9992685, 19985370]

約数ペア:

[(1, 19985370), (2, 9992685), (3, 6661790), (5, 3997074), (6, 3330895), (10, 1998537), (15, 1332358), (17, 1175610), (30, 666179), (34, 587805), (51, 391870), (85, 235122), (102, 195935), (149, 134130), (170, 117561), (255, 78374), (263, 75990), (298, 67065), (447, 44710), (510, 39187), (526, 37995), (745, 26826), (789, 25330), (894, 22355), (1315, 15198), (1490, 13413), (1578, 12665), (2235, 8942), (2533, 7890), (2630, 7599), (3945, 5066), (4470, 4471)]