19990947900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{865409}}^1$

素因数の和:865444

約数の個数: 144

約数和(自身を含む): 72112884480

約数和(自身を除く): 52121936580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 25, 28, 30, 33, 35, 42, 44, 50, 55, 60, 66, 70, 75, 77, 84, 100, 105, 110, 132, 140, 150, 154, 165, 175, 210, 220, 231, 275, 300, 308, 330, 350, 385, 420, 462, 525, 550, 660, 700, 770, 825, 924, 1050, 1100, 1155, 1540, 1650, 1925, 2100, 2310, 3300, 3850, 4620, 5775, 7700, 11550, 23100, 865409, 1730818, 2596227, 3461636, 4327045, 5192454, 6057863, 8654090, 9519499, 10384908, 12115726, 12981135, 17308180, 18173589, 19038998, 21635225, 24231452, 25962270, 28558497, 30289315, 36347178, 38077996, 43270450, 47597495, 51924540, 57116994, 60578630, 64905675, 66636493, 72694356, 86540900, 90867945, 95194990, 114233988, 121157260, 129811350, 133272986, 142792485, 151446575, 181735890, 190389980, 199909479, 237987475, 259622700, 266545972, 285584970, 302893150, 333182465, 363471780, 399818958, 454339725, 475974950, 571169940, 605786300, 666364930, 713962425, 799637916, 908679450, 951949900, 999547395, 1332729860, 1427924850, 1665912325, 1817358900, 1999094790, 2855849700, 3331824650, 3998189580, 4997736975, 6663649300, 9995473950, 19990947900]

約数ペア:

[(1, 19990947900), (2, 9995473950), (3, 6663649300), (4, 4997736975), (5, 3998189580), (6, 3331824650), (7, 2855849700), (10, 1999094790), (11, 1817358900), (12, 1665912325), (14, 1427924850), (15, 1332729860), (20, 999547395), (21, 951949900), (22, 908679450), (25, 799637916), (28, 713962425), (30, 666364930), (33, 605786300), (35, 571169940), (42, 475974950), (44, 454339725), (50, 399818958), (55, 363471780), (60, 333182465), (66, 302893150), (70, 285584970), (75, 266545972), (77, 259622700), (84, 237987475), (100, 199909479), (105, 190389980), (110, 181735890), (132, 151446575), (140, 142792485), (150, 133272986), (154, 129811350), (165, 121157260), (175, 114233988), (210, 95194990), (220, 90867945), (231, 86540900), (275, 72694356), (300, 66636493), (308, 64905675), (330, 60578630), (350, 57116994), (385, 51924540), (420, 47597495), (462, 43270450), (525, 38077996), (550, 36347178), (660, 30289315), (700, 28558497), (770, 25962270), (825, 24231452), (924, 21635225), (1050, 19038998), (1100, 18173589), (1155, 17308180), (1540, 12981135), (1650, 12115726), (1925, 10384908), (2100, 9519499), (2310, 8654090), (3300, 6057863), (3850, 5192454), (4620, 4327045), (5775, 3461636), (7700, 2596227), (11550, 1730818), (23100, 865409)]