251949880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3643}}^1$

素因数の和:3693

約数の個数: 128

約数和(自身を含む): 734630400

約数和(自身を除く): 482680520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 19, 20, 26, 28, 35, 38, 40, 52, 56, 65, 70, 76, 91, 95, 104, 130, 133, 140, 152, 182, 190, 247, 260, 266, 280, 364, 380, 455, 494, 520, 532, 665, 728, 760, 910, 988, 1064, 1235, 1330, 1729, 1820, 1976, 2470, 2660, 3458, 3640, 3643, 4940, 5320, 6916, 7286, 8645, 9880, 13832, 14572, 17290, 18215, 25501, 29144, 34580, 36430, 47359, 51002, 69160, 69217, 72860, 94718, 102004, 127505, 138434, 145720, 189436, 204008, 236795, 255010, 276868, 331513, 346085, 378872, 473590, 484519, 510020, 553736, 663026, 692170, 899821, 947180, 969038, 1020040, 1326052, 1384340, 1657565, 1799642, 1894360, 1938076, 2422595, 2652104, 2768680, 3315130, 3599284, 3876152, 4499105, 4845190, 6298747, 6630260, 7198568, 8998210, 9690380, 12597494, 13260520, 17996420, 19380760, 25194988, 31493735, 35992840, 50389976, 62987470, 125974940, 251949880]

約数ペア:

[(1, 251949880), (2, 125974940), (4, 62987470), (5, 50389976), (7, 35992840), (8, 31493735), (10, 25194988), (13, 19380760), (14, 17996420), (19, 13260520), (20, 12597494), (26, 9690380), (28, 8998210), (35, 7198568), (38, 6630260), (40, 6298747), (52, 4845190), (56, 4499105), (65, 3876152), (70, 3599284), (76, 3315130), (91, 2768680), (95, 2652104), (104, 2422595), (130, 1938076), (133, 1894360), (140, 1799642), (152, 1657565), (182, 1384340), (190, 1326052), (247, 1020040), (260, 969038), (266, 947180), (280, 899821), (364, 692170), (380, 663026), (455, 553736), (494, 510020), (520, 484519), (532, 473590), (665, 378872), (728, 346085), (760, 331513), (910, 276868), (988, 255010), (1064, 236795), (1235, 204008), (1330, 189436), (1729, 145720), (1820, 138434), (1976, 127505), (2470, 102004), (2660, 94718), (3458, 72860), (3640, 69217), (3643, 69160), (4940, 51002), (5320, 47359), (6916, 36430), (7286, 34580), (8645, 29144), (9880, 25501), (13832, 18215), (14572, 17290)]