687633940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{269}}^1$

素因数の和:366

約数の個数: 144

約数和(自身を含む): 1801699200

約数和(自身を除く): 1114065260

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 31, 35, 38, 62, 70, 76, 95, 124, 133, 140, 155, 190, 217, 266, 269, 310, 380, 434, 532, 538, 589, 620, 665, 868, 961, 1076, 1085, 1178, 1330, 1345, 1883, 1922, 2170, 2356, 2660, 2690, 2945, 3766, 3844, 4123, 4340, 4805, 5111, 5380, 5890, 6727, 7532, 8246, 8339, 9415, 9610, 10222, 11780, 13454, 16492, 16678, 18259, 18830, 19220, 20444, 20615, 25555, 26908, 33356, 33635, 35777, 36518, 37660, 41230, 41695, 51110, 58373, 67270, 71554, 73036, 82460, 83390, 91295, 102220, 116746, 127813, 134540, 143108, 158441, 166780, 178885, 182590, 233492, 255626, 258509, 291865, 316882, 357770, 365180, 511252, 517018, 583730, 633764, 639065, 715540, 792205, 1034036, 1109087, 1167460, 1278130, 1292545, 1584410, 1809563, 2218174, 2556260, 2585090, 3168820, 3619126, 4436348, 4911671, 5170180, 5545435, 7238252, 9047815, 9823342, 11090870, 18095630, 19646684, 22181740, 24558355, 34381697, 36191260, 49116710, 68763394, 98233420, 137526788, 171908485, 343816970, 687633940]

約数ペア:

[(1, 687633940), (2, 343816970), (4, 171908485), (5, 137526788), (7, 98233420), (10, 68763394), (14, 49116710), (19, 36191260), (20, 34381697), (28, 24558355), (31, 22181740), (35, 19646684), (38, 18095630), (62, 11090870), (70, 9823342), (76, 9047815), (95, 7238252), (124, 5545435), (133, 5170180), (140, 4911671), (155, 4436348), (190, 3619126), (217, 3168820), (266, 2585090), (269, 2556260), (310, 2218174), (380, 1809563), (434, 1584410), (532, 1292545), (538, 1278130), (589, 1167460), (620, 1109087), (665, 1034036), (868, 792205), (961, 715540), (1076, 639065), (1085, 633764), (1178, 583730), (1330, 517018), (1345, 511252), (1883, 365180), (1922, 357770), (2170, 316882), (2356, 291865), (2660, 258509), (2690, 255626), (2945, 233492), (3766, 182590), (3844, 178885), (4123, 166780), (4340, 158441), (4805, 143108), (5111, 134540), (5380, 127813), (5890, 116746), (6727, 102220), (7532, 91295), (8246, 83390), (8339, 82460), (9415, 73036), (9610, 71554), (10222, 67270), (11780, 58373), (13454, 51110), (16492, 41695), (16678, 41230), (18259, 37660), (18830, 36518), (19220, 35777), (20444, 33635), (20615, 33356), (25555, 26908)]