638913720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{10103}}^1$

素因数の和:10165

約数の個数: 128

約数和(自身を含む): 2095165440

約数和(自身を除く): 1456251720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 31, 34, 40, 51, 60, 62, 68, 85, 93, 102, 120, 124, 136, 155, 170, 186, 204, 248, 255, 310, 340, 372, 408, 465, 510, 527, 620, 680, 744, 930, 1020, 1054, 1240, 1581, 1860, 2040, 2108, 2635, 3162, 3720, 4216, 5270, 6324, 7905, 10103, 10540, 12648, 15810, 20206, 21080, 30309, 31620, 40412, 50515, 60618, 63240, 80824, 101030, 121236, 151545, 171751, 202060, 242472, 303090, 313193, 343502, 404120, 515253, 606180, 626386, 687004, 858755, 939579, 1030506, 1212360, 1252772, 1374008, 1565965, 1717510, 1879158, 2061012, 2505544, 2576265, 3131930, 3435020, 3758316, 4122024, 4697895, 5152530, 5324281, 6263860, 6870040, 7516632, 9395790, 10305060, 10648562, 12527720, 15972843, 18791580, 20610120, 21297124, 26621405, 31945686, 37583160, 42594248, 53242810, 63891372, 79864215, 106485620, 127782744, 159728430, 212971240, 319456860, 638913720]

約数ペア:

[(1, 638913720), (2, 319456860), (3, 212971240), (4, 159728430), (5, 127782744), (6, 106485620), (8, 79864215), (10, 63891372), (12, 53242810), (15, 42594248), (17, 37583160), (20, 31945686), (24, 26621405), (30, 21297124), (31, 20610120), (34, 18791580), (40, 15972843), (51, 12527720), (60, 10648562), (62, 10305060), (68, 9395790), (85, 7516632), (93, 6870040), (102, 6263860), (120, 5324281), (124, 5152530), (136, 4697895), (155, 4122024), (170, 3758316), (186, 3435020), (204, 3131930), (248, 2576265), (255, 2505544), (310, 2061012), (340, 1879158), (372, 1717510), (408, 1565965), (465, 1374008), (510, 1252772), (527, 1212360), (620, 1030506), (680, 939579), (744, 858755), (930, 687004), (1020, 626386), (1054, 606180), (1240, 515253), (1581, 404120), (1860, 343502), (2040, 313193), (2108, 303090), (2635, 242472), (3162, 202060), (3720, 171751), (4216, 151545), (5270, 121236), (6324, 101030), (7905, 80824), (10103, 63240), (10540, 60618), (12648, 50515), (15810, 40412), (20206, 31620), (21080, 30309)]