19953240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9781}}^1$

素因数の和:9812

約数の個数: 64

約数和(自身を含む): 63387360

約数和(自身を除く): 43434120

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, 9781, 19562, 29343, 39124, 48905, 58686, 78248, 97810, 117372, 146715, 166277, 195620, 234744, 293430, 332554, 391240, 498831, 586860, 665108, 831385, 997662, 1173720, 1330216, 1662770, 1995324, 2494155, 3325540, 3990648, 4988310, 6651080, 9976620, 19953240]

約数ペア:

[(1, 19953240), (2, 9976620), (3, 6651080), (4, 4988310), (5, 3990648), (6, 3325540), (8, 2494155), (10, 1995324), (12, 1662770), (15, 1330216), (17, 1173720), (20, 997662), (24, 831385), (30, 665108), (34, 586860), (40, 498831), (51, 391240), (60, 332554), (68, 293430), (85, 234744), (102, 195620), (120, 166277), (136, 146715), (170, 117372), (204, 97810), (255, 78248), (340, 58686), (408, 48905), (510, 39124), (680, 29343), (1020, 19562), (2040, 9781)]