225567160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2061

約数の個数: 128

約数和(自身を含む): 645120000

約数和(自身を除く): 419552840

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 91, 104, 124, 130, 140, 155, 182, 217, 248, 260, 280, 310, 364, 403, 434, 455, 520, 620, 728, 806, 868, 910, 1085, 1240, 1612, 1736, 1820, 1999, 2015, 2170, 2821, 3224, 3640, 3998, 4030, 4340, 5642, 7996, 8060, 8680, 9995, 11284, 13993, 14105, 15992, 16120, 19990, 22568, 25987, 27986, 28210, 39980, 51974, 55972, 56420, 61969, 69965, 79960, 103948, 111944, 112840, 123938, 129935, 139930, 181909, 207896, 247876, 259870, 279860, 309845, 363818, 433783, 495752, 519740, 559720, 619690, 727636, 805597, 867566, 909545, 1039480, 1239380, 1455272, 1611194, 1735132, 1819090, 2168915, 2478760, 3222388, 3470264, 3638180, 4027985, 4337830, 5639179, 6444776, 7276360, 8055970, 8675660, 11278358, 16111940, 17351320, 22556716, 28195895, 32223880, 45113432, 56391790, 112783580, 225567160]

約数ペア:

[(1, 225567160), (2, 112783580), (4, 56391790), (5, 45113432), (7, 32223880), (8, 28195895), (10, 22556716), (13, 17351320), (14, 16111940), (20, 11278358), (26, 8675660), (28, 8055970), (31, 7276360), (35, 6444776), (40, 5639179), (52, 4337830), (56, 4027985), (62, 3638180), (65, 3470264), (70, 3222388), (91, 2478760), (104, 2168915), (124, 1819090), (130, 1735132), (140, 1611194), (155, 1455272), (182, 1239380), (217, 1039480), (248, 909545), (260, 867566), (280, 805597), (310, 727636), (364, 619690), (403, 559720), (434, 519740), (455, 495752), (520, 433783), (620, 363818), (728, 309845), (806, 279860), (868, 259870), (910, 247876), (1085, 207896), (1240, 181909), (1612, 139930), (1736, 129935), (1820, 123938), (1999, 112840), (2015, 111944), (2170, 103948), (2821, 79960), (3224, 69965), (3640, 61969), (3998, 56420), (4030, 55972), (4340, 51974), (5642, 39980), (7996, 28210), (8060, 27986), (8680, 25987), (9995, 22568), (11284, 19990), (13993, 16120), (14105, 15992)]