18978050

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:172

約数の個数: 96

約数和(自身を含む): 44913792

約数和(自身を除く): 25935742

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 43, 50, 65, 70, 86, 91, 97, 130, 175, 182, 194, 215, 301, 325, 350, 430, 455, 485, 559, 602, 650, 679, 910, 970, 1075, 1118, 1261, 1358, 1505, 2150, 2275, 2425, 2522, 2795, 3010, 3395, 3913, 4171, 4550, 4850, 5590, 6305, 6790, 7525, 7826, 8342, 8827, 12610, 13975, 15050, 16975, 17654, 19565, 20855, 27950, 29197, 31525, 33950, 39130, 41710, 44135, 54223, 58394, 63050, 88270, 97825, 104275, 108446, 145985, 195650, 208550, 220675, 271115, 291970, 379561, 441350, 542230, 729925, 759122, 1355575, 1459850, 1897805, 2711150, 3795610, 9489025, 18978050]

約数ペア:

[(1, 18978050), (2, 9489025), (5, 3795610), (7, 2711150), (10, 1897805), (13, 1459850), (14, 1355575), (25, 759122), (26, 729925), (35, 542230), (43, 441350), (50, 379561), (65, 291970), (70, 271115), (86, 220675), (91, 208550), (97, 195650), (130, 145985), (175, 108446), (182, 104275), (194, 97825), (215, 88270), (301, 63050), (325, 58394), (350, 54223), (430, 44135), (455, 41710), (485, 39130), (559, 33950), (602, 31525), (650, 29197), (679, 27950), (910, 20855), (970, 19565), (1075, 17654), (1118, 16975), (1261, 15050), (1358, 13975), (1505, 12610), (2150, 8827), (2275, 8342), (2425, 7826), (2522, 7525), (2795, 6790), (3010, 6305), (3395, 5590), (3913, 4850), (4171, 4550)]