28208300

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 64683360

約数和(自身を除く): 36475060

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 71, 100, 116, 137, 142, 145, 274, 284, 290, 355, 548, 580, 685, 710, 725, 1370, 1420, 1450, 1775, 2059, 2740, 2900, 3425, 3550, 3973, 4118, 6850, 7100, 7946, 8236, 9727, 10295, 13700, 15892, 19454, 19865, 20590, 38908, 39730, 41180, 48635, 51475, 79460, 97270, 99325, 102950, 194540, 198650, 205900, 243175, 282083, 397300, 486350, 564166, 972700, 1128332, 1410415, 2820830, 5641660, 7052075, 14104150, 28208300]

約数ペア:

[(1, 28208300), (2, 14104150), (4, 7052075), (5, 5641660), (10, 2820830), (20, 1410415), (25, 1128332), (29, 972700), (50, 564166), (58, 486350), (71, 397300), (100, 282083), (116, 243175), (137, 205900), (142, 198650), (145, 194540), (274, 102950), (284, 99325), (290, 97270), (355, 79460), (548, 51475), (580, 48635), (685, 41180), (710, 39730), (725, 38908), (1370, 20590), (1420, 19865), (1450, 19454), (1775, 15892), (2059, 13700), (2740, 10295), (2900, 9727), (3425, 8236), (3550, 7946), (3973, 7100), (4118, 6850)]