19783140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1951}}^1$

素因数の和:1989

約数の個数: 72

約数和(自身を含む): 60012288

約数和(自身を除く): 40229148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 1951, 2028, 2535, 3380, 3902, 5070, 5853, 7804, 9755, 10140, 11706, 19510, 23412, 25363, 29265, 39020, 50726, 58530, 76089, 101452, 117060, 126815, 152178, 253630, 304356, 329719, 380445, 507260, 659438, 760890, 989157, 1318876, 1521780, 1648595, 1978314, 3297190, 3956628, 4945785, 6594380, 9891570, 19783140]

約数ペア:

[(1, 19783140), (2, 9891570), (3, 6594380), (4, 4945785), (5, 3956628), (6, 3297190), (10, 1978314), (12, 1648595), (13, 1521780), (15, 1318876), (20, 989157), (26, 760890), (30, 659438), (39, 507260), (52, 380445), (60, 329719), (65, 304356), (78, 253630), (130, 152178), (156, 126815), (169, 117060), (195, 101452), (260, 76089), (338, 58530), (390, 50726), (507, 39020), (676, 29265), (780, 25363), (845, 23412), (1014, 19510), (1690, 11706), (1951, 10140), (2028, 9755), (2535, 7804), (3380, 5853), (3902, 5070)]