19834020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{439}}^1$

素因数の和:705

約数の個数: 72

約数和(自身を含む): 60540480

約数和(自身を除く): 40706460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 251, 439, 502, 753, 878, 1004, 1255, 1317, 1506, 1756, 2195, 2259, 2510, 2634, 3012, 3765, 3951, 4390, 4518, 5020, 5268, 6585, 7530, 7902, 8780, 9036, 11295, 13170, 15060, 15804, 19755, 22590, 26340, 39510, 45180, 79020, 110189, 220378, 330567, 440756, 550945, 661134, 991701, 1101890, 1322268, 1652835, 1983402, 2203780, 3305670, 3966804, 4958505, 6611340, 9917010, 19834020]

約数ペア:

[(1, 19834020), (2, 9917010), (3, 6611340), (4, 4958505), (5, 3966804), (6, 3305670), (9, 2203780), (10, 1983402), (12, 1652835), (15, 1322268), (18, 1101890), (20, 991701), (30, 661134), (36, 550945), (45, 440756), (60, 330567), (90, 220378), (180, 110189), (251, 79020), (439, 45180), (502, 39510), (753, 26340), (878, 22590), (1004, 19755), (1255, 15804), (1317, 15060), (1506, 13170), (1756, 11295), (2195, 9036), (2259, 8780), (2510, 7902), (2634, 7530), (3012, 6585), (3765, 5268), (3951, 5020), (4390, 4518)]