78963820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 188084736

約数和(自身を除く): 109120916

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 97, 101, 124, 130, 155, 194, 202, 260, 310, 388, 403, 404, 485, 505, 620, 806, 970, 1010, 1261, 1313, 1612, 1940, 2015, 2020, 2522, 2626, 3007, 3131, 4030, 5044, 5252, 6014, 6262, 6305, 6565, 8060, 9797, 12028, 12524, 12610, 13130, 15035, 15655, 19594, 25220, 26260, 30070, 31310, 39091, 39188, 40703, 48985, 60140, 62620, 78182, 81406, 97970, 127361, 156364, 162812, 195455, 195940, 203515, 254722, 303707, 390910, 407030, 509444, 607414, 636805, 781820, 814060, 1214828, 1273610, 1518535, 2547220, 3037070, 3948191, 6074140, 7896382, 15792764, 19740955, 39481910, 78963820]

約数ペア:

[(1, 78963820), (2, 39481910), (4, 19740955), (5, 15792764), (10, 7896382), (13, 6074140), (20, 3948191), (26, 3037070), (31, 2547220), (52, 1518535), (62, 1273610), (65, 1214828), (97, 814060), (101, 781820), (124, 636805), (130, 607414), (155, 509444), (194, 407030), (202, 390910), (260, 303707), (310, 254722), (388, 203515), (403, 195940), (404, 195455), (485, 162812), (505, 156364), (620, 127361), (806, 97970), (970, 81406), (1010, 78182), (1261, 62620), (1313, 60140), (1612, 48985), (1940, 40703), (2015, 39188), (2020, 39091), (2522, 31310), (2626, 30070), (3007, 26260), (3131, 25220), (4030, 19594), (5044, 15655), (5252, 15035), (6014, 13130), (6262, 12610), (6305, 12524), (6565, 12028), (8060, 9797)]