257444040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{43783}}^1$

素因数の和:43811

約数の個数: 96

約数和(自身を含む): 898447680

約数和(自身を除く): 641003640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 5880, 43783, 87566, 131349, 175132, 218915, 262698, 306481, 350264, 437830, 525396, 612962, 656745, 875660, 919443, 1050792, 1225924, 1313490, 1532405, 1751320, 1838886, 2145367, 2451848, 2626980, 3064810, 3677772, 4290734, 4597215, 5253960, 6129620, 6436101, 7355544, 8581468, 9194430, 10726835, 12259240, 12872202, 17162936, 18388860, 21453670, 25744404, 32180505, 36777720, 42907340, 51488808, 64361010, 85814680, 128722020, 257444040]

約数ペア:

[(1, 257444040), (2, 128722020), (3, 85814680), (4, 64361010), (5, 51488808), (6, 42907340), (7, 36777720), (8, 32180505), (10, 25744404), (12, 21453670), (14, 18388860), (15, 17162936), (20, 12872202), (21, 12259240), (24, 10726835), (28, 9194430), (30, 8581468), (35, 7355544), (40, 6436101), (42, 6129620), (49, 5253960), (56, 4597215), (60, 4290734), (70, 3677772), (84, 3064810), (98, 2626980), (105, 2451848), (120, 2145367), (140, 1838886), (147, 1751320), (168, 1532405), (196, 1313490), (210, 1225924), (245, 1050792), (280, 919443), (294, 875660), (392, 656745), (420, 612962), (490, 525396), (588, 437830), (735, 350264), (840, 306481), (980, 262698), (1176, 218915), (1470, 175132), (1960, 131349), (2940, 87566), (5880, 43783)]