638900700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{68699}}^1$

素因数の和:68747

約数の個数: 72

約数和(自身を含む): 1908211200

約数和(自身を除く): 1269310500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 31, 50, 60, 62, 75, 93, 100, 124, 150, 155, 186, 300, 310, 372, 465, 620, 775, 930, 1550, 1860, 2325, 3100, 4650, 9300, 68699, 137398, 206097, 274796, 343495, 412194, 686990, 824388, 1030485, 1373980, 1717475, 2060970, 2129669, 3434950, 4121940, 4259338, 5152425, 6389007, 6869900, 8518676, 10304850, 10648345, 12778014, 20609700, 21296690, 25556028, 31945035, 42593380, 53241725, 63890070, 106483450, 127780140, 159725175, 212966900, 319450350, 638900700]

約数ペア:

[(1, 638900700), (2, 319450350), (3, 212966900), (4, 159725175), (5, 127780140), (6, 106483450), (10, 63890070), (12, 53241725), (15, 42593380), (20, 31945035), (25, 25556028), (30, 21296690), (31, 20609700), (50, 12778014), (60, 10648345), (62, 10304850), (75, 8518676), (93, 6869900), (100, 6389007), (124, 5152425), (150, 4259338), (155, 4121940), (186, 3434950), (300, 2129669), (310, 2060970), (372, 1717475), (465, 1373980), (620, 1030485), (775, 824388), (930, 686990), (1550, 412194), (1860, 343495), (2325, 274796), (3100, 206097), (4650, 137398), (9300, 68699)]