20956650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{977}}^1$

素因数の和:1016

約数の個数: 96

約数和(自身を含む): 61121088

約数和(自身を除く): 40164438

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 25, 26, 30, 33, 39, 50, 55, 65, 66, 75, 78, 110, 130, 143, 150, 165, 195, 275, 286, 325, 330, 390, 429, 550, 650, 715, 825, 858, 975, 977, 1430, 1650, 1950, 1954, 2145, 2931, 3575, 4290, 4885, 5862, 7150, 9770, 10725, 10747, 12701, 14655, 21450, 21494, 24425, 25402, 29310, 32241, 38103, 48850, 53735, 63505, 64482, 73275, 76206, 107470, 127010, 139711, 146550, 161205, 190515, 268675, 279422, 317525, 322410, 381030, 419133, 537350, 635050, 698555, 806025, 838266, 952575, 1397110, 1612050, 1905150, 2095665, 3492775, 4191330, 6985550, 10478325, 20956650]

約数ペア:

[(1, 20956650), (2, 10478325), (3, 6985550), (5, 4191330), (6, 3492775), (10, 2095665), (11, 1905150), (13, 1612050), (15, 1397110), (22, 952575), (25, 838266), (26, 806025), (30, 698555), (33, 635050), (39, 537350), (50, 419133), (55, 381030), (65, 322410), (66, 317525), (75, 279422), (78, 268675), (110, 190515), (130, 161205), (143, 146550), (150, 139711), (165, 127010), (195, 107470), (275, 76206), (286, 73275), (325, 64482), (330, 63505), (390, 53735), (429, 48850), (550, 38103), (650, 32241), (715, 29310), (825, 25402), (858, 24425), (975, 21494), (977, 21450), (1430, 14655), (1650, 12701), (1950, 10747), (1954, 10725), (2145, 9770), (2931, 7150), (3575, 5862), (4290, 4885)]