19936890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:252

約数の個数: 96

約数和(自身を含む): 55598400

約数和(自身を除く): 35661510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 45, 57, 89, 90, 95, 114, 131, 171, 178, 190, 262, 267, 285, 342, 393, 445, 534, 570, 655, 786, 801, 855, 890, 1179, 1310, 1335, 1602, 1691, 1710, 1965, 2358, 2489, 2670, 3382, 3930, 4005, 4978, 5073, 5895, 7467, 8010, 8455, 10146, 11659, 11790, 12445, 14934, 15219, 16910, 22401, 23318, 24890, 25365, 30438, 34977, 37335, 44802, 50730, 58295, 69954, 74670, 76095, 104931, 112005, 116590, 152190, 174885, 209862, 221521, 224010, 349770, 443042, 524655, 664563, 1049310, 1107605, 1329126, 1993689, 2215210, 3322815, 3987378, 6645630, 9968445, 19936890]

約数ペア:

[(1, 19936890), (2, 9968445), (3, 6645630), (5, 3987378), (6, 3322815), (9, 2215210), (10, 1993689), (15, 1329126), (18, 1107605), (19, 1049310), (30, 664563), (38, 524655), (45, 443042), (57, 349770), (89, 224010), (90, 221521), (95, 209862), (114, 174885), (131, 152190), (171, 116590), (178, 112005), (190, 104931), (262, 76095), (267, 74670), (285, 69954), (342, 58295), (393, 50730), (445, 44802), (534, 37335), (570, 34977), (655, 30438), (786, 25365), (801, 24890), (855, 23318), (890, 22401), (1179, 16910), (1310, 15219), (1335, 14934), (1602, 12445), (1691, 11790), (1710, 11659), (1965, 10146), (2358, 8455), (2489, 8010), (2670, 7467), (3382, 5895), (3930, 5073), (4005, 4978)]