78302900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:154

約数の個数: 144

約数和(自身を含む): 198320640

約数和(自身を除く): 120017740

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 29, 31, 50, 52, 58, 62, 65, 67, 100, 116, 124, 130, 134, 145, 155, 260, 268, 290, 310, 325, 335, 377, 403, 580, 620, 650, 670, 725, 754, 775, 806, 871, 899, 1300, 1340, 1450, 1508, 1550, 1612, 1675, 1742, 1798, 1885, 1943, 2015, 2077, 2900, 3100, 3350, 3484, 3596, 3770, 3886, 4030, 4154, 4355, 4495, 6700, 7540, 7772, 8060, 8308, 8710, 8990, 9425, 9715, 10075, 10385, 11687, 17420, 17980, 18850, 19430, 20150, 20770, 21775, 22475, 23374, 25259, 27001, 37700, 38860, 40300, 41540, 43550, 44950, 46748, 48575, 50518, 51925, 54002, 58435, 60233, 87100, 89900, 97150, 101036, 103850, 108004, 116870, 120466, 126295, 135005, 194300, 207700, 233740, 240932, 252590, 270010, 292175, 301165, 505180, 540020, 584350, 602330, 631475, 675025, 783029, 1168700, 1204660, 1262950, 1350050, 1505825, 1566058, 2525900, 2700100, 3011650, 3132116, 3915145, 6023300, 7830290, 15660580, 19575725, 39151450, 78302900]

約数ペア:

[(1, 78302900), (2, 39151450), (4, 19575725), (5, 15660580), (10, 7830290), (13, 6023300), (20, 3915145), (25, 3132116), (26, 3011650), (29, 2700100), (31, 2525900), (50, 1566058), (52, 1505825), (58, 1350050), (62, 1262950), (65, 1204660), (67, 1168700), (100, 783029), (116, 675025), (124, 631475), (130, 602330), (134, 584350), (145, 540020), (155, 505180), (260, 301165), (268, 292175), (290, 270010), (310, 252590), (325, 240932), (335, 233740), (377, 207700), (403, 194300), (580, 135005), (620, 126295), (650, 120466), (670, 116870), (725, 108004), (754, 103850), (775, 101036), (806, 97150), (871, 89900), (899, 87100), (1300, 60233), (1340, 58435), (1450, 54002), (1508, 51925), (1550, 50518), (1612, 48575), (1675, 46748), (1742, 44950), (1798, 43550), (1885, 41540), (1943, 40300), (2015, 38860), (2077, 37700), (2900, 27001), (3100, 25259), (3350, 23374), (3484, 22475), (3596, 21775), (3770, 20770), (3886, 20150), (4030, 19430), (4154, 18850), (4355, 17980), (4495, 17420), (6700, 11687), (7540, 10385), (7772, 10075), (8060, 9715), (8308, 9425), (8710, 8990)]