1819173420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1\times {\mathrm{431}}^1$

素因数の和:756

約数の個数: 144

約数和(自身を含む): 5604318720

約数和(自身を除く): 3785145300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 179, 180, 262, 358, 393, 431, 524, 537, 655, 716, 786, 862, 895, 1074, 1179, 1293, 1310, 1572, 1611, 1724, 1790, 1965, 2148, 2155, 2358, 2586, 2620, 2685, 3222, 3580, 3879, 3930, 4310, 4716, 5172, 5370, 5895, 6444, 6465, 7758, 7860, 8055, 8620, 10740, 11790, 12930, 15516, 16110, 19395, 23449, 23580, 25860, 32220, 38790, 46898, 56461, 70347, 77149, 77580, 93796, 112922, 117245, 140694, 154298, 169383, 211041, 225844, 231447, 234490, 281388, 282305, 308596, 338766, 351735, 385745, 422082, 462894, 468980, 508149, 564610, 677532, 694341, 703470, 771490, 844164, 846915, 925788, 1016298, 1055205, 1129220, 1157235, 1388682, 1406940, 1542980, 1693830, 2032596, 2110410, 2314470, 2540745, 2777364, 3387660, 3471705, 4220820, 4628940, 5081490, 6943410, 10106519, 10162980, 13886820, 20213038, 30319557, 40426076, 50532595, 60639114, 90958671, 101065190, 121278228, 151597785, 181917342, 202130380, 303195570, 363834684, 454793355, 606391140, 909586710, 1819173420]

約数ペア:

[(1, 1819173420), (2, 909586710), (3, 606391140), (4, 454793355), (5, 363834684), (6, 303195570), (9, 202130380), (10, 181917342), (12, 151597785), (15, 121278228), (18, 101065190), (20, 90958671), (30, 60639114), (36, 50532595), (45, 40426076), (60, 30319557), (90, 20213038), (131, 13886820), (179, 10162980), (180, 10106519), (262, 6943410), (358, 5081490), (393, 4628940), (431, 4220820), (524, 3471705), (537, 3387660), (655, 2777364), (716, 2540745), (786, 2314470), (862, 2110410), (895, 2032596), (1074, 1693830), (1179, 1542980), (1293, 1406940), (1310, 1388682), (1572, 1157235), (1611, 1129220), (1724, 1055205), (1790, 1016298), (1965, 925788), (2148, 846915), (2155, 844164), (2358, 771490), (2586, 703470), (2620, 694341), (2685, 677532), (3222, 564610), (3580, 508149), (3879, 468980), (3930, 462894), (4310, 422082), (4716, 385745), (5172, 351735), (5370, 338766), (5895, 308596), (6444, 282305), (6465, 281388), (7758, 234490), (7860, 231447), (8055, 225844), (8620, 211041), (10740, 169383), (11790, 154298), (12930, 140694), (15516, 117245), (16110, 112922), (19395, 93796), (23449, 77580), (23580, 77149), (25860, 70347), (32220, 56461), (38790, 46898)]