128571884

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{821}}^1$

素因数の和:903

約数の個数: 72

約数和(自身を含む): 283372992

約数和(自身を除く): 154801108

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 47, 49, 68, 94, 98, 119, 188, 196, 238, 329, 476, 658, 799, 821, 833, 1316, 1598, 1642, 1666, 2303, 3196, 3284, 3332, 4606, 5593, 5747, 9212, 11186, 11494, 13957, 22372, 22988, 27914, 38587, 39151, 40229, 55828, 77174, 78302, 80458, 97699, 154348, 156604, 160916, 195398, 270109, 390796, 540218, 655979, 683893, 1080436, 1311958, 1367786, 1890763, 2623916, 2735572, 3781526, 4591853, 7563052, 9183706, 18367412, 32142971, 64285942, 128571884]

約数ペア:

[(1, 128571884), (2, 64285942), (4, 32142971), (7, 18367412), (14, 9183706), (17, 7563052), (28, 4591853), (34, 3781526), (47, 2735572), (49, 2623916), (68, 1890763), (94, 1367786), (98, 1311958), (119, 1080436), (188, 683893), (196, 655979), (238, 540218), (329, 390796), (476, 270109), (658, 195398), (799, 160916), (821, 156604), (833, 154348), (1316, 97699), (1598, 80458), (1642, 78302), (1666, 77174), (2303, 55828), (3196, 40229), (3284, 39151), (3332, 38587), (4606, 27914), (5593, 22988), (5747, 22372), (9212, 13957), (11186, 11494)]