81715600

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:293

約数の個数: 120

約数和(自身を含む): 212350248

約数和(自身を除く): 130634648

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 61, 68, 80, 85, 100, 122, 136, 170, 197, 200, 244, 272, 305, 340, 394, 400, 425, 488, 610, 680, 788, 850, 976, 985, 1037, 1220, 1360, 1525, 1576, 1700, 1970, 2074, 2440, 3050, 3152, 3349, 3400, 3940, 4148, 4880, 4925, 5185, 6100, 6698, 6800, 7880, 8296, 9850, 10370, 12017, 12200, 13396, 15760, 16592, 16745, 19700, 20740, 24034, 24400, 25925, 26792, 33490, 39400, 41480, 48068, 51850, 53584, 60085, 66980, 78800, 82960, 83725, 96136, 103700, 120170, 133960, 167450, 192272, 204289, 207400, 240340, 267920, 300425, 334900, 408578, 414800, 480680, 600850, 669800, 817156, 961360, 1021445, 1201700, 1339600, 1634312, 2042890, 2403400, 3268624, 4085780, 4806800, 5107225, 8171560, 10214450, 16343120, 20428900, 40857800, 81715600]

約数ペア:

[(1, 81715600), (2, 40857800), (4, 20428900), (5, 16343120), (8, 10214450), (10, 8171560), (16, 5107225), (17, 4806800), (20, 4085780), (25, 3268624), (34, 2403400), (40, 2042890), (50, 1634312), (61, 1339600), (68, 1201700), (80, 1021445), (85, 961360), (100, 817156), (122, 669800), (136, 600850), (170, 480680), (197, 414800), (200, 408578), (244, 334900), (272, 300425), (305, 267920), (340, 240340), (394, 207400), (400, 204289), (425, 192272), (488, 167450), (610, 133960), (680, 120170), (788, 103700), (850, 96136), (976, 83725), (985, 82960), (1037, 78800), (1220, 66980), (1360, 60085), (1525, 53584), (1576, 51850), (1700, 48068), (1970, 41480), (2074, 39400), (2440, 33490), (3050, 26792), (3152, 25925), (3349, 24400), (3400, 24034), (3940, 20740), (4148, 19700), (4880, 16745), (4925, 16592), (5185, 15760), (6100, 13396), (6698, 12200), (6800, 12017), (7880, 10370), (8296, 9850)]