20845456920

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{136889}}^1$

素因数の和:136959

約数の個数: 160

約数和(自身を含む): 71555140800

約数和(自身を除く): 50709683880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 47, 54, 60, 72, 81, 90, 94, 108, 120, 135, 141, 162, 180, 188, 216, 235, 270, 282, 324, 360, 376, 405, 423, 470, 540, 564, 648, 705, 810, 846, 940, 1080, 1128, 1269, 1410, 1620, 1692, 1880, 2115, 2538, 2820, 3240, 3384, 3807, 4230, 5076, 5640, 6345, 7614, 8460, 10152, 12690, 15228, 16920, 19035, 25380, 30456, 38070, 50760, 76140, 136889, 152280, 273778, 410667, 547556, 684445, 821334, 1095112, 1232001, 1368890, 1642668, 2053335, 2464002, 2737780, 3285336, 3696003, 4106670, 4928004, 5475560, 6160005, 6433783, 7392006, 8213340, 9856008, 11088009, 12320010, 12867566, 14784012, 16426680, 18480015, 19301349, 22176018, 24640020, 25735132, 29568024, 32168915, 36960030, 38602698, 44352036, 49280040, 51470264, 55440045, 57904047, 64337830, 73920060, 77205396, 88704072, 96506745, 110880090, 115808094, 128675660, 147840120, 154410792, 173712141, 193013490, 221760180, 231616188, 257351320, 289520235, 347424282, 386026980, 443520360, 463232376, 521136423, 579040470, 694848564, 772053960, 868560705, 1042272846, 1158080940, 1389697128, 1737121410, 2084545692, 2316161880, 2605682115, 3474242820, 4169091384, 5211364230, 6948485640, 10422728460, 20845456920]

約数ペア:

[(1, 20845456920), (2, 10422728460), (3, 6948485640), (4, 5211364230), (5, 4169091384), (6, 3474242820), (8, 2605682115), (9, 2316161880), (10, 2084545692), (12, 1737121410), (15, 1389697128), (18, 1158080940), (20, 1042272846), (24, 868560705), (27, 772053960), (30, 694848564), (36, 579040470), (40, 521136423), (45, 463232376), (47, 443520360), (54, 386026980), (60, 347424282), (72, 289520235), (81, 257351320), (90, 231616188), (94, 221760180), (108, 193013490), (120, 173712141), (135, 154410792), (141, 147840120), (162, 128675660), (180, 115808094), (188, 110880090), (216, 96506745), (235, 88704072), (270, 77205396), (282, 73920060), (324, 64337830), (360, 57904047), (376, 55440045), (405, 51470264), (423, 49280040), (470, 44352036), (540, 38602698), (564, 36960030), (648, 32168915), (705, 29568024), (810, 25735132), (846, 24640020), (940, 22176018), (1080, 19301349), (1128, 18480015), (1269, 16426680), (1410, 14784012), (1620, 12867566), (1692, 12320010), (1880, 11088009), (2115, 9856008), (2538, 8213340), (2820, 7392006), (3240, 6433783), (3384, 6160005), (3807, 5475560), (4230, 4928004), (5076, 4106670), (5640, 3696003), (6345, 3285336), (7614, 2737780), (8460, 2464002), (10152, 2053335), (12690, 1642668), (15228, 1368890), (16920, 1232001), (19035, 1095112), (25380, 821334), (30456, 684445), (38070, 547556), (50760, 410667), (76140, 273778), (136889, 152280)]