2018444720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{21997}}^1$

素因数の和:22078

約数の個数: 80

約数和(自身を含む): 4975419648

約数和(自身を除く): 2956974928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 37, 40, 62, 74, 80, 124, 148, 155, 185, 248, 296, 310, 370, 496, 592, 620, 740, 1147, 1240, 1480, 2294, 2480, 2960, 4588, 5735, 9176, 11470, 18352, 21997, 22940, 43994, 45880, 87988, 91760, 109985, 175976, 219970, 351952, 439940, 681907, 813889, 879880, 1363814, 1627778, 1759760, 2727628, 3255556, 3409535, 4069445, 5455256, 6511112, 6819070, 8138890, 10910512, 13022224, 13638140, 16277780, 25230559, 27276280, 32555560, 50461118, 54552560, 65111120, 100922236, 126152795, 201844472, 252305590, 403688944, 504611180, 1009222360, 2018444720]

約数ペア:

[(1, 2018444720), (2, 1009222360), (4, 504611180), (5, 403688944), (8, 252305590), (10, 201844472), (16, 126152795), (20, 100922236), (31, 65111120), (37, 54552560), (40, 50461118), (62, 32555560), (74, 27276280), (80, 25230559), (124, 16277780), (148, 13638140), (155, 13022224), (185, 10910512), (248, 8138890), (296, 6819070), (310, 6511112), (370, 5455256), (496, 4069445), (592, 3409535), (620, 3255556), (740, 2727628), (1147, 1759760), (1240, 1627778), (1480, 1363814), (2294, 879880), (2480, 813889), (2960, 681907), (4588, 439940), (5735, 351952), (9176, 219970), (11470, 175976), (18352, 109985), (21997, 91760), (22940, 87988), (43994, 45880)]