81037980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{373}}^1$

素因数の和:476

約数の個数: 144

約数和(自身を含む): 264648384

約数和(自身を除く): 183610404

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 71, 85, 90, 102, 142, 153, 170, 180, 204, 213, 255, 284, 306, 340, 355, 373, 426, 510, 612, 639, 710, 746, 765, 852, 1020, 1065, 1119, 1207, 1278, 1420, 1492, 1530, 1865, 2130, 2238, 2414, 2556, 3060, 3195, 3357, 3621, 3730, 4260, 4476, 4828, 5595, 6035, 6341, 6390, 6714, 7242, 7460, 10863, 11190, 12070, 12682, 12780, 13428, 14484, 16785, 18105, 19023, 21726, 22380, 24140, 25364, 26483, 31705, 33570, 36210, 38046, 43452, 52966, 54315, 57069, 63410, 67140, 72420, 76092, 79449, 95115, 105932, 108630, 114138, 126820, 132415, 158898, 190230, 217260, 228276, 238347, 264830, 285345, 317796, 380460, 397245, 450211, 476694, 529660, 570690, 794490, 900422, 953388, 1141380, 1191735, 1350633, 1588980, 1800844, 2251055, 2383470, 2701266, 4051899, 4502110, 4766940, 5402532, 6753165, 8103798, 9004220, 13506330, 16207596, 20259495, 27012660, 40518990, 81037980]

約数ペア:

[(1, 81037980), (2, 40518990), (3, 27012660), (4, 20259495), (5, 16207596), (6, 13506330), (9, 9004220), (10, 8103798), (12, 6753165), (15, 5402532), (17, 4766940), (18, 4502110), (20, 4051899), (30, 2701266), (34, 2383470), (36, 2251055), (45, 1800844), (51, 1588980), (60, 1350633), (68, 1191735), (71, 1141380), (85, 953388), (90, 900422), (102, 794490), (142, 570690), (153, 529660), (170, 476694), (180, 450211), (204, 397245), (213, 380460), (255, 317796), (284, 285345), (306, 264830), (340, 238347), (355, 228276), (373, 217260), (426, 190230), (510, 158898), (612, 132415), (639, 126820), (710, 114138), (746, 108630), (765, 105932), (852, 95115), (1020, 79449), (1065, 76092), (1119, 72420), (1207, 67140), (1278, 63410), (1420, 57069), (1492, 54315), (1530, 52966), (1865, 43452), (2130, 38046), (2238, 36210), (2414, 33570), (2556, 31705), (3060, 26483), (3195, 25364), (3357, 24140), (3621, 22380), (3730, 21726), (4260, 19023), (4476, 18105), (4828, 16785), (5595, 14484), (6035, 13428), (6341, 12780), (6390, 12682), (6714, 12070), (7242, 11190), (7460, 10863)]