19999500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:288

約数の個数: 96

約数和(自身を含む): 59404800

約数和(自身を除く): 39405300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 67, 75, 100, 125, 134, 150, 199, 201, 250, 268, 300, 335, 375, 398, 402, 500, 597, 670, 750, 796, 804, 995, 1005, 1194, 1340, 1500, 1675, 1990, 2010, 2388, 2985, 3350, 3980, 4020, 4975, 5025, 5970, 6700, 8375, 9950, 10050, 11940, 13333, 14925, 16750, 19900, 20100, 24875, 25125, 26666, 29850, 33500, 39999, 49750, 50250, 53332, 59700, 66665, 74625, 79998, 99500, 100500, 133330, 149250, 159996, 199995, 266660, 298500, 333325, 399990, 666650, 799980, 999975, 1333300, 1666625, 1999950, 3333250, 3999900, 4999875, 6666500, 9999750, 19999500]

約数ペア:

[(1, 19999500), (2, 9999750), (3, 6666500), (4, 4999875), (5, 3999900), (6, 3333250), (10, 1999950), (12, 1666625), (15, 1333300), (20, 999975), (25, 799980), (30, 666650), (50, 399990), (60, 333325), (67, 298500), (75, 266660), (100, 199995), (125, 159996), (134, 149250), (150, 133330), (199, 100500), (201, 99500), (250, 79998), (268, 74625), (300, 66665), (335, 59700), (375, 53332), (398, 50250), (402, 49750), (500, 39999), (597, 33500), (670, 29850), (750, 26666), (796, 25125), (804, 24875), (995, 20100), (1005, 19900), (1194, 16750), (1340, 14925), (1500, 13333), (1675, 11940), (1990, 10050), (2010, 9950), (2388, 8375), (2985, 6700), (3350, 5970), (3980, 5025), (4020, 4975)]