242918480

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2057

約数の個数: 120

約数和(自身を含む): 678528000

約数和(自身を除く): 435609520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 196, 217, 245, 248, 280, 310, 392, 434, 490, 496, 560, 620, 784, 868, 980, 1085, 1240, 1519, 1736, 1960, 1999, 2170, 2480, 3038, 3472, 3920, 3998, 4340, 6076, 7595, 7996, 8680, 9995, 12152, 13993, 15190, 15992, 17360, 19990, 24304, 27986, 30380, 31984, 39980, 55972, 60760, 61969, 69965, 79960, 97951, 111944, 121520, 123938, 139930, 159920, 195902, 223888, 247876, 279860, 309845, 391804, 433783, 489755, 495752, 559720, 619690, 783608, 867566, 979510, 991504, 1119440, 1239380, 1567216, 1735132, 1959020, 2168915, 2478760, 3036481, 3470264, 3918040, 4337830, 4957520, 6072962, 6940528, 7836080, 8675660, 12145924, 15182405, 17351320, 24291848, 30364810, 34702640, 48583696, 60729620, 121459240, 242918480]

約数ペア:

[(1, 242918480), (2, 121459240), (4, 60729620), (5, 48583696), (7, 34702640), (8, 30364810), (10, 24291848), (14, 17351320), (16, 15182405), (20, 12145924), (28, 8675660), (31, 7836080), (35, 6940528), (40, 6072962), (49, 4957520), (56, 4337830), (62, 3918040), (70, 3470264), (80, 3036481), (98, 2478760), (112, 2168915), (124, 1959020), (140, 1735132), (155, 1567216), (196, 1239380), (217, 1119440), (245, 991504), (248, 979510), (280, 867566), (310, 783608), (392, 619690), (434, 559720), (490, 495752), (496, 489755), (560, 433783), (620, 391804), (784, 309845), (868, 279860), (980, 247876), (1085, 223888), (1240, 195902), (1519, 159920), (1736, 139930), (1960, 123938), (1999, 121520), (2170, 111944), (2480, 97951), (3038, 79960), (3472, 69965), (3920, 61969), (3998, 60760), (4340, 55972), (6076, 39980), (7595, 31984), (7996, 30380), (8680, 27986), (9995, 24304), (12152, 19990), (13993, 17360), (15190, 15992)]