80641620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:254

約数の個数: 144

約数和(自身を含む): 254741760

約数和(自身を除く): 174100140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 79, 90, 106, 107, 158, 159, 180, 212, 214, 237, 265, 316, 318, 321, 395, 428, 474, 477, 530, 535, 636, 642, 711, 790, 795, 948, 954, 963, 1060, 1070, 1185, 1284, 1422, 1580, 1590, 1605, 1908, 1926, 2140, 2370, 2385, 2844, 3180, 3210, 3555, 3852, 4187, 4740, 4770, 4815, 5671, 6420, 7110, 8374, 8453, 9540, 9630, 11342, 12561, 14220, 16748, 16906, 17013, 19260, 20935, 22684, 25122, 25359, 28355, 33812, 34026, 37683, 41870, 42265, 50244, 50718, 51039, 56710, 62805, 68052, 75366, 76077, 83740, 84530, 85065, 101436, 102078, 113420, 125610, 126795, 150732, 152154, 169060, 170130, 188415, 204156, 251220, 253590, 255195, 304308, 340260, 376830, 380385, 448009, 507180, 510390, 753660, 760770, 896018, 1020780, 1344027, 1521540, 1792036, 2240045, 2688054, 4032081, 4480090, 5376108, 6720135, 8064162, 8960180, 13440270, 16128324, 20160405, 26880540, 40320810, 80641620]

約数ペア:

[(1, 80641620), (2, 40320810), (3, 26880540), (4, 20160405), (5, 16128324), (6, 13440270), (9, 8960180), (10, 8064162), (12, 6720135), (15, 5376108), (18, 4480090), (20, 4032081), (30, 2688054), (36, 2240045), (45, 1792036), (53, 1521540), (60, 1344027), (79, 1020780), (90, 896018), (106, 760770), (107, 753660), (158, 510390), (159, 507180), (180, 448009), (212, 380385), (214, 376830), (237, 340260), (265, 304308), (316, 255195), (318, 253590), (321, 251220), (395, 204156), (428, 188415), (474, 170130), (477, 169060), (530, 152154), (535, 150732), (636, 126795), (642, 125610), (711, 113420), (790, 102078), (795, 101436), (948, 85065), (954, 84530), (963, 83740), (1060, 76077), (1070, 75366), (1185, 68052), (1284, 62805), (1422, 56710), (1580, 51039), (1590, 50718), (1605, 50244), (1908, 42265), (1926, 41870), (2140, 37683), (2370, 34026), (2385, 33812), (2844, 28355), (3180, 25359), (3210, 25122), (3555, 22684), (3852, 20935), (4187, 19260), (4740, 17013), (4770, 16906), (4815, 16748), (5671, 14220), (6420, 12561), (7110, 11342), (8374, 9630), (8453, 9540)]