7644980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{269}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 19391400

約数和(自身を除く): 11746420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 269, 290, 406, 490, 538, 580, 812, 980, 1015, 1076, 1345, 1421, 1883, 2030, 2690, 2842, 3766, 4060, 5380, 5684, 7105, 7532, 7801, 9415, 13181, 14210, 15602, 18830, 26362, 28420, 31204, 37660, 39005, 52724, 54607, 65905, 78010, 109214, 131810, 156020, 218428, 263620, 273035, 382249, 546070, 764498, 1092140, 1528996, 1911245, 3822490, 7644980]

約数ペア:

[(1, 7644980), (2, 3822490), (4, 1911245), (5, 1528996), (7, 1092140), (10, 764498), (14, 546070), (20, 382249), (28, 273035), (29, 263620), (35, 218428), (49, 156020), (58, 131810), (70, 109214), (98, 78010), (116, 65905), (140, 54607), (145, 52724), (196, 39005), (203, 37660), (245, 31204), (269, 28420), (290, 26362), (406, 18830), (490, 15602), (538, 14210), (580, 13181), (812, 9415), (980, 7801), (1015, 7532), (1076, 7105), (1345, 5684), (1421, 5380), (1883, 4060), (2030, 3766), (2690, 2842)]