28660120

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{797}}^1$

素因数の和:868

約数の個数: 64

約数和(自身を含む): 68947200

約数和(自身を除く): 40287080

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 580, 620, 797, 899, 1160, 1240, 1594, 1798, 3188, 3596, 3985, 4495, 6376, 7192, 7970, 8990, 15940, 17980, 23113, 24707, 31880, 35960, 46226, 49414, 92452, 98828, 115565, 123535, 184904, 197656, 231130, 247070, 462260, 494140, 716503, 924520, 988280, 1433006, 2866012, 3582515, 5732024, 7165030, 14330060, 28660120]

約数ペア:

[(1, 28660120), (2, 14330060), (4, 7165030), (5, 5732024), (8, 3582515), (10, 2866012), (20, 1433006), (29, 988280), (31, 924520), (40, 716503), (58, 494140), (62, 462260), (116, 247070), (124, 231130), (145, 197656), (155, 184904), (232, 123535), (248, 115565), (290, 98828), (310, 92452), (580, 49414), (620, 46226), (797, 35960), (899, 31880), (1160, 24707), (1240, 23113), (1594, 17980), (1798, 15940), (3188, 8990), (3596, 7970), (3985, 7192), (4495, 6376)]