27821780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 70785792

約数和(自身を除く): 42964012

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 41, 70, 74, 82, 131, 140, 148, 164, 185, 205, 259, 262, 287, 370, 410, 518, 524, 574, 655, 740, 820, 917, 1036, 1148, 1295, 1310, 1435, 1517, 1834, 2590, 2620, 2870, 3034, 3668, 4585, 4847, 5180, 5371, 5740, 6068, 7585, 9170, 9694, 10619, 10742, 15170, 18340, 19388, 21238, 21484, 24235, 26855, 30340, 33929, 37597, 42476, 48470, 53095, 53710, 67858, 75194, 96940, 106190, 107420, 135716, 150388, 169645, 187985, 198727, 212380, 339290, 375970, 397454, 678580, 751940, 794908, 993635, 1391089, 1987270, 2782178, 3974540, 5564356, 6955445, 13910890, 27821780]

約数ペア:

[(1, 27821780), (2, 13910890), (4, 6955445), (5, 5564356), (7, 3974540), (10, 2782178), (14, 1987270), (20, 1391089), (28, 993635), (35, 794908), (37, 751940), (41, 678580), (70, 397454), (74, 375970), (82, 339290), (131, 212380), (140, 198727), (148, 187985), (164, 169645), (185, 150388), (205, 135716), (259, 107420), (262, 106190), (287, 96940), (370, 75194), (410, 67858), (518, 53710), (524, 53095), (574, 48470), (655, 42476), (740, 37597), (820, 33929), (917, 30340), (1036, 26855), (1148, 24235), (1295, 21484), (1310, 21238), (1435, 19388), (1517, 18340), (1834, 15170), (2590, 10742), (2620, 10619), (2870, 9694), (3034, 9170), (3668, 7585), (4585, 6068), (4847, 5740), (5180, 5371)]