399392630

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{13}}^3\times {\mathrm{53}}^1$

素因数の和:120

約数の個数: 128

約数和(自身を含む): 925344000

約数和(自身を除く): 525951370

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 53, 65, 70, 91, 98, 106, 130, 169, 182, 245, 265, 338, 343, 371, 455, 490, 530, 637, 686, 689, 742, 845, 910, 1183, 1274, 1378, 1690, 1715, 1855, 2197, 2366, 2597, 3185, 3430, 3445, 3710, 4394, 4459, 4823, 5194, 5915, 6370, 6890, 8281, 8918, 8957, 9646, 10985, 11830, 12985, 15379, 16562, 17914, 18179, 21970, 22295, 24115, 25970, 30758, 33761, 36358, 41405, 44590, 44785, 48230, 57967, 62699, 67522, 76895, 82810, 89570, 90895, 107653, 115934, 116441, 125398, 153790, 168805, 181790, 215306, 232882, 236327, 289835, 313495, 337610, 438893, 472654, 538265, 579670, 582205, 626990, 753571, 815087, 877786, 1076530, 1164410, 1181635, 1507142, 1630174, 2194465, 2363270, 3072251, 3767855, 4075435, 4388930, 5705609, 6144502, 7535710, 8150870, 11411218, 15361255, 28528045, 30722510, 39939263, 57056090, 79878526, 199696315, 399392630]

約数ペア:

[(1, 399392630), (2, 199696315), (5, 79878526), (7, 57056090), (10, 39939263), (13, 30722510), (14, 28528045), (26, 15361255), (35, 11411218), (49, 8150870), (53, 7535710), (65, 6144502), (70, 5705609), (91, 4388930), (98, 4075435), (106, 3767855), (130, 3072251), (169, 2363270), (182, 2194465), (245, 1630174), (265, 1507142), (338, 1181635), (343, 1164410), (371, 1076530), (455, 877786), (490, 815087), (530, 753571), (637, 626990), (686, 582205), (689, 579670), (742, 538265), (845, 472654), (910, 438893), (1183, 337610), (1274, 313495), (1378, 289835), (1690, 236327), (1715, 232882), (1855, 215306), (2197, 181790), (2366, 168805), (2597, 153790), (3185, 125398), (3430, 116441), (3445, 115934), (3710, 107653), (4394, 90895), (4459, 89570), (4823, 82810), (5194, 76895), (5915, 67522), (6370, 62699), (6890, 57967), (8281, 48230), (8918, 44785), (8957, 44590), (9646, 41405), (10985, 36358), (11830, 33761), (12985, 30758), (15379, 25970), (16562, 24115), (17914, 22295), (18179, 21970)]