19953750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{313}}^1$

素因数の和:355

約数の個数: 80

約数和(自身を含む): 52970544

約数和(自身を除く): 33016794

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 25, 30, 34, 50, 51, 75, 85, 102, 125, 150, 170, 250, 255, 313, 375, 425, 510, 625, 626, 750, 850, 939, 1250, 1275, 1565, 1875, 1878, 2125, 2550, 3130, 3750, 4250, 4695, 5321, 6375, 7825, 9390, 10625, 10642, 12750, 15650, 15963, 21250, 23475, 26605, 31875, 31926, 39125, 46950, 53210, 63750, 78250, 79815, 117375, 133025, 159630, 195625, 234750, 266050, 391250, 399075, 586875, 665125, 798150, 1173750, 1330250, 1995375, 3325625, 3990750, 6651250, 9976875, 19953750]

約数ペア:

[(1, 19953750), (2, 9976875), (3, 6651250), (5, 3990750), (6, 3325625), (10, 1995375), (15, 1330250), (17, 1173750), (25, 798150), (30, 665125), (34, 586875), (50, 399075), (51, 391250), (75, 266050), (85, 234750), (102, 195625), (125, 159630), (150, 133025), (170, 117375), (250, 79815), (255, 78250), (313, 63750), (375, 53210), (425, 46950), (510, 39125), (625, 31926), (626, 31875), (750, 26605), (850, 23475), (939, 21250), (1250, 15963), (1275, 15650), (1565, 12750), (1875, 10642), (1878, 10625), (2125, 9390), (2550, 7825), (3130, 6375), (3750, 5321), (4250, 4695)]