15940980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 53936064

約数和(自身を除く): 37995084

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 83, 90, 97, 99, 110, 132, 165, 166, 180, 194, 198, 220, 249, 291, 330, 332, 388, 396, 415, 485, 495, 498, 582, 660, 747, 830, 873, 913, 970, 990, 996, 1067, 1164, 1245, 1455, 1494, 1660, 1746, 1826, 1940, 1980, 2134, 2490, 2739, 2910, 2988, 3201, 3492, 3652, 3735, 4268, 4365, 4565, 4980, 5335, 5478, 5820, 6402, 7470, 8051, 8217, 8730, 9130, 9603, 10670, 10956, 12804, 13695, 14940, 16005, 16102, 16434, 17460, 18260, 19206, 21340, 24153, 27390, 32010, 32204, 32868, 38412, 40255, 41085, 48015, 48306, 54780, 64020, 72459, 80510, 82170, 88561, 96030, 96612, 120765, 144918, 161020, 164340, 177122, 192060, 241530, 265683, 289836, 354244, 362295, 442805, 483060, 531366, 724590, 797049, 885610, 1062732, 1328415, 1449180, 1594098, 1771220, 2656830, 3188196, 3985245, 5313660, 7970490, 15940980]

約数ペア:

[(1, 15940980), (2, 7970490), (3, 5313660), (4, 3985245), (5, 3188196), (6, 2656830), (9, 1771220), (10, 1594098), (11, 1449180), (12, 1328415), (15, 1062732), (18, 885610), (20, 797049), (22, 724590), (30, 531366), (33, 483060), (36, 442805), (44, 362295), (45, 354244), (55, 289836), (60, 265683), (66, 241530), (83, 192060), (90, 177122), (97, 164340), (99, 161020), (110, 144918), (132, 120765), (165, 96612), (166, 96030), (180, 88561), (194, 82170), (198, 80510), (220, 72459), (249, 64020), (291, 54780), (330, 48306), (332, 48015), (388, 41085), (396, 40255), (415, 38412), (485, 32868), (495, 32204), (498, 32010), (582, 27390), (660, 24153), (747, 21340), (830, 19206), (873, 18260), (913, 17460), (970, 16434), (990, 16102), (996, 16005), (1067, 14940), (1164, 13695), (1245, 12804), (1455, 10956), (1494, 10670), (1660, 9603), (1746, 9130), (1826, 8730), (1940, 8217), (1980, 8051), (2134, 7470), (2490, 6402), (2739, 5820), (2910, 5478), (2988, 5335), (3201, 4980), (3492, 4565), (3652, 4365), (3735, 4268)]