19990350

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1433}}^1$

素因数の和:1482

約数の個数: 72

約数和(自身を含む): 55478592

約数和(自身を除く): 35488242

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 31, 45, 50, 62, 75, 90, 93, 150, 155, 186, 225, 279, 310, 450, 465, 558, 775, 930, 1395, 1433, 1550, 2325, 2790, 2866, 4299, 4650, 6975, 7165, 8598, 12897, 13950, 14330, 21495, 25794, 35825, 42990, 44423, 64485, 71650, 88846, 107475, 128970, 133269, 214950, 222115, 266538, 322425, 399807, 444230, 644850, 666345, 799614, 1110575, 1332690, 1999035, 2221150, 3331725, 3998070, 6663450, 9995175, 19990350]

約数ペア:

[(1, 19990350), (2, 9995175), (3, 6663450), (5, 3998070), (6, 3331725), (9, 2221150), (10, 1999035), (15, 1332690), (18, 1110575), (25, 799614), (30, 666345), (31, 644850), (45, 444230), (50, 399807), (62, 322425), (75, 266538), (90, 222115), (93, 214950), (150, 133269), (155, 128970), (186, 107475), (225, 88846), (279, 71650), (310, 64485), (450, 44423), (465, 42990), (558, 35825), (775, 25794), (930, 21495), (1395, 14330), (1433, 13950), (1550, 12897), (2325, 8598), (2790, 7165), (2866, 6975), (4299, 4650)]