72856140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{24781}}^1$

素因数の和:24807

約数の個数: 72

約数和(自身を含む): 237312432

約数和(自身を除く): 164456292

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 24781, 49562, 74343, 99124, 123905, 148686, 173467, 247810, 297372, 346934, 371715, 495620, 520401, 693868, 743430, 867335, 1040802, 1214269, 1486860, 1734670, 2081604, 2428538, 2602005, 3469340, 3642807, 4857076, 5204010, 6071345, 7285614, 10408020, 12142690, 14571228, 18214035, 24285380, 36428070, 72856140]

約数ペア:

[(1, 72856140), (2, 36428070), (3, 24285380), (4, 18214035), (5, 14571228), (6, 12142690), (7, 10408020), (10, 7285614), (12, 6071345), (14, 5204010), (15, 4857076), (20, 3642807), (21, 3469340), (28, 2602005), (30, 2428538), (35, 2081604), (42, 1734670), (49, 1486860), (60, 1214269), (70, 1040802), (84, 867335), (98, 743430), (105, 693868), (140, 520401), (147, 495620), (196, 371715), (210, 346934), (245, 297372), (294, 247810), (420, 173467), (490, 148686), (588, 123905), (735, 99124), (980, 74343), (1470, 49562), (2940, 24781)]