19563540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^2$

素因数の和:293

約数の個数: 72

約数和(自身を含む): 58104480

約数和(自身を除く): 38540940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 131, 190, 228, 262, 285, 380, 393, 524, 570, 655, 786, 1140, 1310, 1572, 1965, 2489, 2620, 3930, 4978, 7467, 7860, 9956, 12445, 14934, 17161, 24890, 29868, 34322, 37335, 49780, 51483, 68644, 74670, 85805, 102966, 149340, 171610, 205932, 257415, 326059, 343220, 514830, 652118, 978177, 1029660, 1304236, 1630295, 1956354, 3260590, 3912708, 4890885, 6521180, 9781770, 19563540]

約数ペア:

[(1, 19563540), (2, 9781770), (3, 6521180), (4, 4890885), (5, 3912708), (6, 3260590), (10, 1956354), (12, 1630295), (15, 1304236), (19, 1029660), (20, 978177), (30, 652118), (38, 514830), (57, 343220), (60, 326059), (76, 257415), (95, 205932), (114, 171610), (131, 149340), (190, 102966), (228, 85805), (262, 74670), (285, 68644), (380, 51483), (393, 49780), (524, 37335), (570, 34322), (655, 29868), (786, 24890), (1140, 17161), (1310, 14934), (1572, 12445), (1965, 9956), (2489, 7860), (2620, 7467), (3930, 4978)]