81688980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{547}}^1$

素因数の和:709

約数の個数: 96

約数和(自身を含む): 243048960

約数和(自身を除く): 161359980

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, 547, 570, 655, 786, 1094, 1140, 1310, 1572, 1641, 1965, 2188, 2489, 2620, 2735, 3282, 3930, 4978, 5470, 6564, 7467, 7860, 8205, 9956, 10393, 10940, 12445, 14934, 16410, 20786, 24890, 29868, 31179, 32820, 37335, 41572, 49780, 51965, 62358, 71657, 74670, 103930, 124716, 143314, 149340, 155895, 207860, 214971, 286628, 311790, 358285, 429942, 623580, 716570, 859884, 1074855, 1361483, 1433140, 2149710, 2722966, 4084449, 4299420, 5445932, 6807415, 8168898, 13614830, 16337796, 20422245, 27229660, 40844490, 81688980]

約数ペア:

[(1, 81688980), (2, 40844490), (3, 27229660), (4, 20422245), (5, 16337796), (6, 13614830), (10, 8168898), (12, 6807415), (15, 5445932), (19, 4299420), (20, 4084449), (30, 2722966), (38, 2149710), (57, 1433140), (60, 1361483), (76, 1074855), (95, 859884), (114, 716570), (131, 623580), (190, 429942), (228, 358285), (262, 311790), (285, 286628), (380, 214971), (393, 207860), (524, 155895), (547, 149340), (570, 143314), (655, 124716), (786, 103930), (1094, 74670), (1140, 71657), (1310, 62358), (1572, 51965), (1641, 49780), (1965, 41572), (2188, 37335), (2489, 32820), (2620, 31179), (2735, 29868), (3282, 24890), (3930, 20786), (4978, 16410), (5470, 14934), (6564, 12445), (7467, 10940), (7860, 10393), (8205, 9956)]