305556720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{761}}^1$

素因数の和:1023

約数の個数: 160

約数和(自身を含む): 1088501760

約数和(自身を除く): 782945040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 239, 240, 280, 336, 420, 478, 560, 717, 761, 840, 956, 1195, 1434, 1522, 1673, 1680, 1912, 2283, 2390, 2868, 3044, 3346, 3585, 3805, 3824, 4566, 4780, 5019, 5327, 5736, 6088, 6692, 7170, 7610, 8365, 9132, 9560, 10038, 10654, 11415, 11472, 12176, 13384, 14340, 15220, 15981, 16730, 18264, 19120, 20076, 21308, 22830, 25095, 26635, 26768, 28680, 30440, 31962, 33460, 36528, 40152, 42616, 45660, 50190, 53270, 57360, 60880, 63924, 66920, 79905, 80304, 85232, 91320, 100380, 106540, 127848, 133840, 159810, 181879, 182640, 200760, 213080, 255696, 319620, 363758, 401520, 426160, 545637, 639240, 727516, 909395, 1091274, 1273153, 1278480, 1455032, 1818790, 2182548, 2546306, 2728185, 2910064, 3637580, 3819459, 4365096, 5092612, 5456370, 6365765, 7275160, 7638918, 8730192, 10185224, 10912740, 12731530, 14550320, 15277836, 19097295, 20370448, 21825480, 25463060, 30555672, 38194590, 43650960, 50926120, 61111344, 76389180, 101852240, 152778360, 305556720]

約数ペア:

[(1, 305556720), (2, 152778360), (3, 101852240), (4, 76389180), (5, 61111344), (6, 50926120), (7, 43650960), (8, 38194590), (10, 30555672), (12, 25463060), (14, 21825480), (15, 20370448), (16, 19097295), (20, 15277836), (21, 14550320), (24, 12731530), (28, 10912740), (30, 10185224), (35, 8730192), (40, 7638918), (42, 7275160), (48, 6365765), (56, 5456370), (60, 5092612), (70, 4365096), (80, 3819459), (84, 3637580), (105, 2910064), (112, 2728185), (120, 2546306), (140, 2182548), (168, 1818790), (210, 1455032), (239, 1278480), (240, 1273153), (280, 1091274), (336, 909395), (420, 727516), (478, 639240), (560, 545637), (717, 426160), (761, 401520), (840, 363758), (956, 319620), (1195, 255696), (1434, 213080), (1522, 200760), (1673, 182640), (1680, 181879), (1912, 159810), (2283, 133840), (2390, 127848), (2868, 106540), (3044, 100380), (3346, 91320), (3585, 85232), (3805, 80304), (3824, 79905), (4566, 66920), (4780, 63924), (5019, 60880), (5327, 57360), (5736, 53270), (6088, 50190), (6692, 45660), (7170, 42616), (7610, 40152), (8365, 36528), (9132, 33460), (9560, 31962), (10038, 30440), (10654, 28680), (11415, 26768), (11472, 26635), (12176, 25095), (13384, 22830), (14340, 21308), (15220, 20076), (15981, 19120), (16730, 18264)]