20327850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{199}}^1\times {\mathrm{227}}^1$

素因数の和:444

約数の個数: 72

約数和(自身を含む): 55130400

約数和(自身を除く): 34802550

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 199, 225, 227, 398, 450, 454, 597, 681, 995, 1135, 1194, 1362, 1791, 1990, 2043, 2270, 2985, 3405, 3582, 4086, 4975, 5675, 5970, 6810, 8955, 9950, 10215, 11350, 14925, 17025, 17910, 20430, 29850, 34050, 44775, 45173, 51075, 89550, 90346, 102150, 135519, 225865, 271038, 406557, 451730, 677595, 813114, 1129325, 1355190, 2032785, 2258650, 3387975, 4065570, 6775950, 10163925, 20327850]

約数ペア:

[(1, 20327850), (2, 10163925), (3, 6775950), (5, 4065570), (6, 3387975), (9, 2258650), (10, 2032785), (15, 1355190), (18, 1129325), (25, 813114), (30, 677595), (45, 451730), (50, 406557), (75, 271038), (90, 225865), (150, 135519), (199, 102150), (225, 90346), (227, 89550), (398, 51075), (450, 45173), (454, 44775), (597, 34050), (681, 29850), (995, 20430), (1135, 17910), (1194, 17025), (1362, 14925), (1791, 11350), (1990, 10215), (2043, 9950), (2270, 8955), (2985, 6810), (3405, 5970), (3582, 5675), (4086, 4975)]