39873780

素因数分解:

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

素因数の和:254

約数の個数: 144

約数和(自身を含む): 129729600

約数和(自身を除く): 89855820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 89, 90, 95, 114, 131, 171, 178, 180, 190, 228, 262, 267, 285, 342, 356, 380, 393, 445, 524, 534, 570, 655, 684, 786, 801, 855, 890, 1068, 1140, 1179, 1310, 1335, 1572, 1602, 1691, 1710, 1780, 1965, 2358, 2489, 2620, 2670, 3204, 3382, 3420, 3930, 4005, 4716, 4978, 5073, 5340, 5895, 6764, 7467, 7860, 8010, 8455, 9956, 10146, 11659, 11790, 12445, 14934, 15219, 16020, 16910, 20292, 22401, 23318, 23580, 24890, 25365, 29868, 30438, 33820, 34977, 37335, 44802, 46636, 49780, 50730, 58295, 60876, 69954, 74670, 76095, 89604, 101460, 104931, 112005, 116590, 139908, 149340, 152190, 174885, 209862, 221521, 224010, 233180, 304380, 349770, 419724, 443042, 448020, 524655, 664563, 699540, 886084, 1049310, 1107605, 1329126, 1993689, 2098620, 2215210, 2658252, 3322815, 3987378, 4430420, 6645630, 7974756, 9968445, 13291260, 19936890, 39873780]

約数ペア:

[(1, 39873780), (2, 19936890), (3, 13291260), (4, 9968445), (5, 7974756), (6, 6645630), (9, 4430420), (10, 3987378), (12, 3322815), (15, 2658252), (18, 2215210), (19, 2098620), (20, 1993689), (30, 1329126), (36, 1107605), (38, 1049310), (45, 886084), (57, 699540), (60, 664563), (76, 524655), (89, 448020), (90, 443042), (95, 419724), (114, 349770), (131, 304380), (171, 233180), (178, 224010), (180, 221521), (190, 209862), (228, 174885), (262, 152190), (267, 149340), (285, 139908), (342, 116590), (356, 112005), (380, 104931), (393, 101460), (445, 89604), (524, 76095), (534, 74670), (570, 69954), (655, 60876), (684, 58295), (786, 50730), (801, 49780), (855, 46636), (890, 44802), (1068, 37335), (1140, 34977), (1179, 33820), (1310, 30438), (1335, 29868), (1572, 25365), (1602, 24890), (1691, 23580), (1710, 23318), (1780, 22401), (1965, 20292), (2358, 16910), (2489, 16020), (2620, 15219), (2670, 14934), (3204, 12445), (3382, 11790), (3420, 11659), (3930, 10146), (4005, 9956), (4716, 8455), (4978, 8010), (5073, 7860), (5340, 7467), (5895, 6764)]