28966640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1$

素因数の和:127

約数の個数: 120

約数和(自身を含む): 76535280

約数和(自身を除く): 47568640

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 59, 68, 76, 80, 85, 95, 118, 136, 152, 170, 190, 236, 272, 295, 304, 323, 340, 361, 380, 472, 590, 646, 680, 722, 760, 944, 1003, 1121, 1180, 1292, 1360, 1444, 1520, 1615, 1805, 2006, 2242, 2360, 2584, 2888, 3230, 3610, 4012, 4484, 4720, 5015, 5168, 5605, 5776, 6137, 6460, 7220, 8024, 8968, 10030, 11210, 12274, 12920, 14440, 16048, 17936, 19057, 20060, 21299, 22420, 24548, 25840, 28880, 30685, 38114, 40120, 42598, 44840, 49096, 61370, 76228, 80240, 85196, 89680, 95285, 98192, 106495, 122740, 152456, 170392, 190570, 212990, 245480, 304912, 340784, 362083, 381140, 425980, 490960, 724166, 762280, 851960, 1448332, 1524560, 1703920, 1810415, 2896664, 3620830, 5793328, 7241660, 14483320, 28966640]

約数ペア:

[(1, 28966640), (2, 14483320), (4, 7241660), (5, 5793328), (8, 3620830), (10, 2896664), (16, 1810415), (17, 1703920), (19, 1524560), (20, 1448332), (34, 851960), (38, 762280), (40, 724166), (59, 490960), (68, 425980), (76, 381140), (80, 362083), (85, 340784), (95, 304912), (118, 245480), (136, 212990), (152, 190570), (170, 170392), (190, 152456), (236, 122740), (272, 106495), (295, 98192), (304, 95285), (323, 89680), (340, 85196), (361, 80240), (380, 76228), (472, 61370), (590, 49096), (646, 44840), (680, 42598), (722, 40120), (760, 38114), (944, 30685), (1003, 28880), (1121, 25840), (1180, 24548), (1292, 22420), (1360, 21299), (1444, 20060), (1520, 19057), (1615, 17936), (1805, 16048), (2006, 14440), (2242, 12920), (2360, 12274), (2584, 11210), (2888, 10030), (3230, 8968), (3610, 8024), (4012, 7220), (4484, 6460), (4720, 6137), (5015, 5776), (5168, 5605)]