101781820

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{401}}^1$

素因数の和:468

約数の個数: 96

約数和(自身を含む): 256636800

約数和(自身を除く): 154854980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 74, 98, 140, 148, 185, 196, 245, 259, 343, 370, 401, 490, 518, 686, 740, 802, 980, 1036, 1295, 1372, 1604, 1715, 1813, 2005, 2590, 2807, 3430, 3626, 4010, 5180, 5614, 6860, 7252, 8020, 9065, 11228, 12691, 14035, 14837, 18130, 19649, 25382, 28070, 29674, 36260, 39298, 50764, 56140, 59348, 63455, 74185, 78596, 98245, 103859, 126910, 137543, 148370, 196490, 207718, 253820, 275086, 296740, 392980, 415436, 519295, 550172, 687715, 727013, 1038590, 1375430, 1454026, 2077180, 2750860, 2908052, 3635065, 5089091, 7270130, 10178182, 14540260, 20356364, 25445455, 50890910, 101781820]

約数ペア:

[(1, 101781820), (2, 50890910), (4, 25445455), (5, 20356364), (7, 14540260), (10, 10178182), (14, 7270130), (20, 5089091), (28, 3635065), (35, 2908052), (37, 2750860), (49, 2077180), (70, 1454026), (74, 1375430), (98, 1038590), (140, 727013), (148, 687715), (185, 550172), (196, 519295), (245, 415436), (259, 392980), (343, 296740), (370, 275086), (401, 253820), (490, 207718), (518, 196490), (686, 148370), (740, 137543), (802, 126910), (980, 103859), (1036, 98245), (1295, 78596), (1372, 74185), (1604, 63455), (1715, 59348), (1813, 56140), (2005, 50764), (2590, 39298), (2807, 36260), (3430, 29674), (3626, 28070), (4010, 25382), (5180, 19649), (5614, 18130), (6860, 14837), (7252, 14035), (8020, 12691), (9065, 11228)]