31428420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:381

約数の個数: 96

約数和(自身を含む): 92660736

約数和(自身を除く): 61232316

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 61, 62, 93, 122, 124, 155, 183, 186, 244, 277, 305, 310, 366, 372, 465, 554, 610, 620, 732, 831, 915, 930, 1108, 1220, 1385, 1662, 1830, 1860, 1891, 2770, 3324, 3660, 3782, 4155, 5540, 5673, 7564, 8310, 8587, 9455, 11346, 16620, 16897, 17174, 18910, 22692, 25761, 28365, 33794, 34348, 37820, 42935, 50691, 51522, 56730, 67588, 84485, 85870, 101382, 103044, 113460, 128805, 168970, 171740, 202764, 253455, 257610, 337940, 506910, 515220, 523807, 1013820, 1047614, 1571421, 2095228, 2619035, 3142842, 5238070, 6285684, 7857105, 10476140, 15714210, 31428420]

約数ペア:

[(1, 31428420), (2, 15714210), (3, 10476140), (4, 7857105), (5, 6285684), (6, 5238070), (10, 3142842), (12, 2619035), (15, 2095228), (20, 1571421), (30, 1047614), (31, 1013820), (60, 523807), (61, 515220), (62, 506910), (93, 337940), (122, 257610), (124, 253455), (155, 202764), (183, 171740), (186, 168970), (244, 128805), (277, 113460), (305, 103044), (310, 101382), (366, 85870), (372, 84485), (465, 67588), (554, 56730), (610, 51522), (620, 50691), (732, 42935), (831, 37820), (915, 34348), (930, 33794), (1108, 28365), (1220, 25761), (1385, 22692), (1662, 18910), (1830, 17174), (1860, 16897), (1891, 16620), (2770, 11346), (3324, 9455), (3660, 8587), (3782, 8310), (4155, 7564), (5540, 5673)]