19521320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:235

約数の個数: 128

約数和(自身を含む): 56125440

約数和(自身を除く): 36604120

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, 173, 182, 217, 248, 260, 280, 310, 346, 364, 403, 434, 455, 520, 620, 692, 728, 806, 865, 868, 910, 1085, 1211, 1240, 1384, 1612, 1730, 1736, 1820, 2015, 2170, 2249, 2422, 2821, 3224, 3460, 3640, 4030, 4340, 4498, 4844, 5363, 5642, 6055, 6920, 8060, 8680, 8996, 9688, 10726, 11245, 11284, 12110, 14105, 15743, 16120, 17992, 21452, 22490, 22568, 24220, 26815, 28210, 31486, 37541, 42904, 44980, 48440, 53630, 56420, 62972, 69719, 75082, 78715, 89960, 107260, 112840, 125944, 139438, 150164, 157430, 187705, 214520, 278876, 300328, 314860, 348595, 375410, 488033, 557752, 629720, 697190, 750820, 976066, 1394380, 1501640, 1952132, 2440165, 2788760, 3904264, 4880330, 9760660, 19521320]

約数ペア:

[(1, 19521320), (2, 9760660), (4, 4880330), (5, 3904264), (7, 2788760), (8, 2440165), (10, 1952132), (13, 1501640), (14, 1394380), (20, 976066), (26, 750820), (28, 697190), (31, 629720), (35, 557752), (40, 488033), (52, 375410), (56, 348595), (62, 314860), (65, 300328), (70, 278876), (91, 214520), (104, 187705), (124, 157430), (130, 150164), (140, 139438), (155, 125944), (173, 112840), (182, 107260), (217, 89960), (248, 78715), (260, 75082), (280, 69719), (310, 62972), (346, 56420), (364, 53630), (403, 48440), (434, 44980), (455, 42904), (520, 37541), (620, 31486), (692, 28210), (728, 26815), (806, 24220), (865, 22568), (868, 22490), (910, 21452), (1085, 17992), (1211, 16120), (1240, 15743), (1384, 14105), (1612, 12110), (1730, 11284), (1736, 11245), (1820, 10726), (2015, 9688), (2170, 8996), (2249, 8680), (2422, 8060), (2821, 6920), (3224, 6055), (3460, 5642), (3640, 5363), (4030, 4844), (4340, 4498)]