19875720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9743}}^1$

素因数の和:9774

約数の個数: 64

約数和(自身を含む): 63141120

約数和(自身を除く): 43265400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 9743, 19486, 29229, 38972, 48715, 58458, 77944, 97430, 116916, 146145, 165631, 194860, 233832, 292290, 331262, 389720, 496893, 584580, 662524, 828155, 993786, 1169160, 1325048, 1656310, 1987572, 2484465, 3312620, 3975144, 4968930, 6625240, 9937860, 19875720]

約数ペア:

[(1, 19875720), (2, 9937860), (3, 6625240), (4, 4968930), (5, 3975144), (6, 3312620), (8, 2484465), (10, 1987572), (12, 1656310), (15, 1325048), (17, 1169160), (20, 993786), (24, 828155), (30, 662524), (34, 584580), (40, 496893), (51, 389720), (60, 331262), (68, 292290), (85, 233832), (102, 194860), (120, 165631), (136, 146145), (170, 116916), (204, 97430), (255, 77944), (340, 58458), (408, 48715), (510, 38972), (680, 29229), (1020, 19486), (2040, 9743)]