20193703020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{619819}}^1$

素因数の和:620015

約数の個数: 72

約数和(自身を含む): 61592753040

約数和(自身を除く): 41399050020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 181, 362, 543, 724, 905, 1086, 1629, 1810, 2172, 2715, 3258, 3620, 5430, 6516, 8145, 10860, 16290, 32580, 619819, 1239638, 1859457, 2479276, 3099095, 3718914, 5578371, 6198190, 7437828, 9297285, 11156742, 12396380, 18594570, 22313484, 27891855, 37189140, 55783710, 111567420, 112187239, 224374478, 336561717, 448748956, 560936195, 673123434, 1009685151, 1121872390, 1346246868, 1682808585, 2019370302, 2243744780, 3365617170, 4038740604, 5048425755, 6731234340, 10096851510, 20193703020]

約数ペア:

[(1, 20193703020), (2, 10096851510), (3, 6731234340), (4, 5048425755), (5, 4038740604), (6, 3365617170), (9, 2243744780), (10, 2019370302), (12, 1682808585), (15, 1346246868), (18, 1121872390), (20, 1009685151), (30, 673123434), (36, 560936195), (45, 448748956), (60, 336561717), (90, 224374478), (180, 112187239), (181, 111567420), (362, 55783710), (543, 37189140), (724, 27891855), (905, 22313484), (1086, 18594570), (1629, 12396380), (1810, 11156742), (2172, 9297285), (2715, 7437828), (3258, 6198190), (3620, 5578371), (5430, 3718914), (6516, 3099095), (8145, 2479276), (10860, 1859457), (16290, 1239638), (32580, 619819)]