18101580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:204

約数の個数: 144

約数和(自身を含む): 60673536

約数和(自身を除く): 42571956

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 49, 60, 70, 84, 94, 98, 105, 131, 140, 141, 147, 188, 196, 210, 235, 245, 262, 282, 294, 329, 393, 420, 470, 490, 524, 564, 588, 655, 658, 705, 735, 786, 917, 940, 980, 987, 1310, 1316, 1410, 1470, 1572, 1645, 1834, 1965, 1974, 2303, 2620, 2751, 2820, 2940, 3290, 3668, 3930, 3948, 4585, 4606, 4935, 5502, 6157, 6419, 6580, 6909, 7860, 9170, 9212, 9870, 11004, 11515, 12314, 12838, 13755, 13818, 18340, 18471, 19257, 19740, 23030, 24628, 25676, 27510, 27636, 30785, 32095, 34545, 36942, 38514, 43099, 46060, 55020, 61570, 64190, 69090, 73884, 77028, 86198, 92355, 96285, 123140, 128380, 129297, 138180, 172396, 184710, 192570, 215495, 258594, 301693, 369420, 385140, 430990, 517188, 603386, 646485, 861980, 905079, 1206772, 1292970, 1508465, 1810158, 2585940, 3016930, 3620316, 4525395, 6033860, 9050790, 18101580]

約数ペア:

[(1, 18101580), (2, 9050790), (3, 6033860), (4, 4525395), (5, 3620316), (6, 3016930), (7, 2585940), (10, 1810158), (12, 1508465), (14, 1292970), (15, 1206772), (20, 905079), (21, 861980), (28, 646485), (30, 603386), (35, 517188), (42, 430990), (47, 385140), (49, 369420), (60, 301693), (70, 258594), (84, 215495), (94, 192570), (98, 184710), (105, 172396), (131, 138180), (140, 129297), (141, 128380), (147, 123140), (188, 96285), (196, 92355), (210, 86198), (235, 77028), (245, 73884), (262, 69090), (282, 64190), (294, 61570), (329, 55020), (393, 46060), (420, 43099), (470, 38514), (490, 36942), (524, 34545), (564, 32095), (588, 30785), (655, 27636), (658, 27510), (705, 25676), (735, 24628), (786, 23030), (917, 19740), (940, 19257), (980, 18471), (987, 18340), (1310, 13818), (1316, 13755), (1410, 12838), (1470, 12314), (1572, 11515), (1645, 11004), (1834, 9870), (1965, 9212), (1974, 9170), (2303, 7860), (2620, 6909), (2751, 6580), (2820, 6419), (2940, 6157), (3290, 5502), (3668, 4935), (3930, 4606), (3948, 4585)]