1961511550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{271}}^1\times {\mathrm{401}}^1$

素因数の和:722

約数の個数: 72

約数和(自身を含む): 3874385952

約数和(自身を除く): 1912874402

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 271, 361, 401, 475, 542, 722, 802, 950, 1355, 1805, 2005, 2710, 3610, 4010, 5149, 6775, 7619, 9025, 10025, 10298, 13550, 15238, 18050, 20050, 25745, 38095, 51490, 76190, 97831, 108671, 128725, 144761, 190475, 195662, 217342, 257450, 289522, 380950, 489155, 543355, 723805, 978310, 1086710, 1447610, 2064749, 2445775, 2716775, 3619025, 4129498, 4891550, 5433550, 7238050, 10323745, 20647490, 39230231, 51618725, 78460462, 103237450, 196151155, 392302310, 980755775, 1961511550]

約数ペア:

[(1, 1961511550), (2, 980755775), (5, 392302310), (10, 196151155), (19, 103237450), (25, 78460462), (38, 51618725), (50, 39230231), (95, 20647490), (190, 10323745), (271, 7238050), (361, 5433550), (401, 4891550), (475, 4129498), (542, 3619025), (722, 2716775), (802, 2445775), (950, 2064749), (1355, 1447610), (1805, 1086710), (2005, 978310), (2710, 723805), (3610, 543355), (4010, 489155), (5149, 380950), (6775, 289522), (7619, 257450), (9025, 217342), (10025, 195662), (10298, 190475), (13550, 144761), (15238, 128725), (18050, 108671), (20050, 97831), (25745, 76190), (38095, 51490)]