19892340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8501}}^1$

素因数の和:8529

約数の個数: 72

約数和(自身を含む): 64989288

約数和(自身を除く): 45096948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8501, 17002, 25503, 34004, 42505, 51006, 76509, 85010, 102012, 110513, 127515, 153018, 170020, 221026, 255030, 306036, 331539, 382545, 442052, 510060, 552565, 663078, 765090, 994617, 1105130, 1326156, 1530180, 1657695, 1989234, 2210260, 3315390, 3978468, 4973085, 6630780, 9946170, 19892340]

約数ペア:

[(1, 19892340), (2, 9946170), (3, 6630780), (4, 4973085), (5, 3978468), (6, 3315390), (9, 2210260), (10, 1989234), (12, 1657695), (13, 1530180), (15, 1326156), (18, 1105130), (20, 994617), (26, 765090), (30, 663078), (36, 552565), (39, 510060), (45, 442052), (52, 382545), (60, 331539), (65, 306036), (78, 255030), (90, 221026), (117, 170020), (130, 153018), (156, 127515), (180, 110513), (195, 102012), (234, 85010), (260, 76509), (390, 51006), (468, 42505), (585, 34004), (780, 25503), (1170, 17002), (2340, 8501)]