19478940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{113}}^1$

素因数の和:168

約数の個数: 144

約数和(自身を含む): 63086688

約数和(自身を除く): 43607748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 113, 130, 156, 169, 170, 195, 204, 221, 226, 255, 260, 338, 339, 340, 390, 442, 452, 507, 510, 565, 663, 676, 678, 780, 845, 884, 1014, 1020, 1105, 1130, 1326, 1356, 1469, 1690, 1695, 1921, 2028, 2210, 2260, 2535, 2652, 2873, 2938, 3315, 3380, 3390, 3842, 4407, 4420, 5070, 5746, 5763, 5876, 6630, 6780, 7345, 7684, 8619, 8814, 9605, 10140, 11492, 11526, 13260, 14365, 14690, 17238, 17628, 19097, 19210, 22035, 23052, 24973, 28730, 28815, 29380, 34476, 38194, 38420, 43095, 44070, 49946, 57291, 57460, 57630, 74919, 76388, 86190, 88140, 95485, 99892, 114582, 115260, 124865, 149838, 172380, 190970, 229164, 249730, 286455, 299676, 324649, 374595, 381940, 499460, 572910, 649298, 749190, 973947, 1145820, 1298596, 1498380, 1623245, 1947894, 3246490, 3895788, 4869735, 6492980, 9739470, 19478940]

約数ペア:

[(1, 19478940), (2, 9739470), (3, 6492980), (4, 4869735), (5, 3895788), (6, 3246490), (10, 1947894), (12, 1623245), (13, 1498380), (15, 1298596), (17, 1145820), (20, 973947), (26, 749190), (30, 649298), (34, 572910), (39, 499460), (51, 381940), (52, 374595), (60, 324649), (65, 299676), (68, 286455), (78, 249730), (85, 229164), (102, 190970), (113, 172380), (130, 149838), (156, 124865), (169, 115260), (170, 114582), (195, 99892), (204, 95485), (221, 88140), (226, 86190), (255, 76388), (260, 74919), (338, 57630), (339, 57460), (340, 57291), (390, 49946), (442, 44070), (452, 43095), (507, 38420), (510, 38194), (565, 34476), (663, 29380), (676, 28815), (678, 28730), (780, 24973), (845, 23052), (884, 22035), (1014, 19210), (1020, 19097), (1105, 17628), (1130, 17238), (1326, 14690), (1356, 14365), (1469, 13260), (1690, 11526), (1695, 11492), (1921, 10140), (2028, 9605), (2210, 8814), (2260, 8619), (2535, 7684), (2652, 7345), (2873, 6780), (2938, 6630), (3315, 5876), (3380, 5763), (3390, 5746), (3842, 5070), (4407, 4420)]