81139100

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{571}}^1$

素因数の和:628

約数の個数: 108

約数和(自身を含む): 212252040

約数和(自身を除く): 131112940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 29, 35, 49, 50, 58, 70, 98, 100, 116, 140, 145, 175, 196, 203, 245, 290, 350, 406, 490, 571, 580, 700, 725, 812, 980, 1015, 1142, 1225, 1421, 1450, 2030, 2284, 2450, 2842, 2855, 2900, 3997, 4060, 4900, 5075, 5684, 5710, 7105, 7994, 10150, 11420, 14210, 14275, 15988, 16559, 19985, 20300, 27979, 28420, 28550, 33118, 35525, 39970, 55958, 57100, 66236, 71050, 79940, 82795, 99925, 111916, 115913, 139895, 142100, 165590, 199850, 231826, 279790, 331180, 399700, 413975, 463652, 559580, 579565, 699475, 811391, 827950, 1159130, 1398950, 1622782, 1655900, 2318260, 2797900, 2897825, 3245564, 4056955, 5795650, 8113910, 11591300, 16227820, 20284775, 40569550, 81139100]

約数ペア:

[(1, 81139100), (2, 40569550), (4, 20284775), (5, 16227820), (7, 11591300), (10, 8113910), (14, 5795650), (20, 4056955), (25, 3245564), (28, 2897825), (29, 2797900), (35, 2318260), (49, 1655900), (50, 1622782), (58, 1398950), (70, 1159130), (98, 827950), (100, 811391), (116, 699475), (140, 579565), (145, 559580), (175, 463652), (196, 413975), (203, 399700), (245, 331180), (290, 279790), (350, 231826), (406, 199850), (490, 165590), (571, 142100), (580, 139895), (700, 115913), (725, 111916), (812, 99925), (980, 82795), (1015, 79940), (1142, 71050), (1225, 66236), (1421, 57100), (1450, 55958), (2030, 39970), (2284, 35525), (2450, 33118), (2842, 28550), (2855, 28420), (2900, 27979), (3997, 20300), (4060, 19985), (4900, 16559), (5075, 15988), (5684, 14275), (5710, 14210), (7105, 11420), (7994, 10150)]