217194640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{2153}}^1$

素因数の和:2276

約数の個数: 80

約数和(自身を含む): 549683568

約数和(自身を除く): 332488928

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 97, 104, 130, 194, 208, 260, 388, 485, 520, 776, 970, 1040, 1261, 1552, 1940, 2153, 2522, 3880, 4306, 5044, 6305, 7760, 8612, 10088, 10765, 12610, 17224, 20176, 21530, 25220, 27989, 34448, 43060, 50440, 55978, 86120, 100880, 111956, 139945, 172240, 208841, 223912, 279890, 417682, 447824, 559780, 835364, 1044205, 1119560, 1670728, 2088410, 2239120, 2714933, 3341456, 4176820, 5429866, 8353640, 10859732, 13574665, 16707280, 21719464, 27149330, 43438928, 54298660, 108597320, 217194640]

約数ペア:

[(1, 217194640), (2, 108597320), (4, 54298660), (5, 43438928), (8, 27149330), (10, 21719464), (13, 16707280), (16, 13574665), (20, 10859732), (26, 8353640), (40, 5429866), (52, 4176820), (65, 3341456), (80, 2714933), (97, 2239120), (104, 2088410), (130, 1670728), (194, 1119560), (208, 1044205), (260, 835364), (388, 559780), (485, 447824), (520, 417682), (776, 279890), (970, 223912), (1040, 208841), (1261, 172240), (1552, 139945), (1940, 111956), (2153, 100880), (2522, 86120), (3880, 55978), (4306, 50440), (5044, 43060), (6305, 34448), (7760, 27989), (8612, 25220), (10088, 21530), (10765, 20176), (12610, 17224)]