1291245100

素因数分解:

$2^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{257}}^1\times {\mathrm{1069}}^1$

素因数の和:1387

約数の個数: 72

約数和(自身を含む): 2875440960

約数和(自身を除く): 1584195860

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 100, 188, 235, 257, 470, 514, 940, 1028, 1069, 1175, 1285, 2138, 2350, 2570, 4276, 4700, 5140, 5345, 6425, 10690, 12079, 12850, 21380, 24158, 25700, 26725, 48316, 50243, 53450, 60395, 100486, 106900, 120790, 200972, 241580, 251215, 274733, 301975, 502430, 549466, 603950, 1004860, 1098932, 1207900, 1256075, 1373665, 2512150, 2747330, 5024300, 5494660, 6868325, 12912451, 13736650, 25824902, 27473300, 51649804, 64562255, 129124510, 258249020, 322811275, 645622550, 1291245100]

約数ペア:

[(1, 1291245100), (2, 645622550), (4, 322811275), (5, 258249020), (10, 129124510), (20, 64562255), (25, 51649804), (47, 27473300), (50, 25824902), (94, 13736650), (100, 12912451), (188, 6868325), (235, 5494660), (257, 5024300), (470, 2747330), (514, 2512150), (940, 1373665), (1028, 1256075), (1069, 1207900), (1175, 1098932), (1285, 1004860), (2138, 603950), (2350, 549466), (2570, 502430), (4276, 301975), (4700, 274733), (5140, 251215), (5345, 241580), (6425, 200972), (10690, 120790), (12079, 106900), (12850, 100486), (21380, 60395), (24158, 53450), (25700, 50243), (26725, 48316)]