215718100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:314

約数の個数: 144

約数和(自身を含む): 548589888

約数和(自身を除く): 332871788

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 43, 50, 52, 65, 68, 85, 86, 100, 130, 170, 172, 215, 221, 227, 260, 325, 340, 425, 430, 442, 454, 559, 650, 731, 850, 860, 884, 908, 1075, 1105, 1118, 1135, 1300, 1462, 1700, 2150, 2210, 2236, 2270, 2795, 2924, 2951, 3655, 3859, 4300, 4420, 4540, 5525, 5590, 5675, 5902, 7310, 7718, 9503, 9761, 11050, 11180, 11350, 11804, 13975, 14620, 14755, 15436, 18275, 19006, 19295, 19522, 22100, 22700, 27950, 29510, 36550, 38012, 38590, 39044, 47515, 48805, 50167, 55900, 59020, 73100, 73775, 77180, 95030, 96475, 97610, 100334, 126893, 147550, 165937, 190060, 192950, 195220, 200668, 237575, 244025, 250835, 253786, 295100, 331874, 385900, 475150, 488050, 501670, 507572, 634465, 663748, 829685, 950300, 976100, 1003340, 1254175, 1268930, 1659370, 2157181, 2508350, 2537860, 3172325, 3318740, 4148425, 4314362, 5016700, 6344650, 8296850, 8628724, 10785905, 12689300, 16593700, 21571810, 43143620, 53929525, 107859050, 215718100]

約数ペア:

[(1, 215718100), (2, 107859050), (4, 53929525), (5, 43143620), (10, 21571810), (13, 16593700), (17, 12689300), (20, 10785905), (25, 8628724), (26, 8296850), (34, 6344650), (43, 5016700), (50, 4314362), (52, 4148425), (65, 3318740), (68, 3172325), (85, 2537860), (86, 2508350), (100, 2157181), (130, 1659370), (170, 1268930), (172, 1254175), (215, 1003340), (221, 976100), (227, 950300), (260, 829685), (325, 663748), (340, 634465), (425, 507572), (430, 501670), (442, 488050), (454, 475150), (559, 385900), (650, 331874), (731, 295100), (850, 253786), (860, 250835), (884, 244025), (908, 237575), (1075, 200668), (1105, 195220), (1118, 192950), (1135, 190060), (1300, 165937), (1462, 147550), (1700, 126893), (2150, 100334), (2210, 97610), (2236, 96475), (2270, 95030), (2795, 77180), (2924, 73775), (2951, 73100), (3655, 59020), (3859, 55900), (4300, 50167), (4420, 48805), (4540, 47515), (5525, 39044), (5590, 38590), (5675, 38012), (5902, 36550), (7310, 29510), (7718, 27950), (9503, 22700), (9761, 22100), (11050, 19522), (11180, 19295), (11350, 19006), (11804, 18275), (13975, 15436), (14620, 14755)]