51201700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{523}}^1$

素因数の和:637

約数の個数: 72

約数和(自身を含む): 122804640

約数和(自身を除く): 71602940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 89, 100, 110, 178, 220, 275, 356, 445, 523, 550, 890, 979, 1046, 1100, 1780, 1958, 2092, 2225, 2615, 3916, 4450, 4895, 5230, 5753, 8900, 9790, 10460, 11506, 13075, 19580, 23012, 24475, 26150, 28765, 46547, 48950, 52300, 57530, 93094, 97900, 115060, 143825, 186188, 232735, 287650, 465470, 512017, 575300, 930940, 1024034, 1163675, 2048068, 2327350, 2560085, 4654700, 5120170, 10240340, 12800425, 25600850, 51201700]

約数ペア:

[(1, 51201700), (2, 25600850), (4, 12800425), (5, 10240340), (10, 5120170), (11, 4654700), (20, 2560085), (22, 2327350), (25, 2048068), (44, 1163675), (50, 1024034), (55, 930940), (89, 575300), (100, 512017), (110, 465470), (178, 287650), (220, 232735), (275, 186188), (356, 143825), (445, 115060), (523, 97900), (550, 93094), (890, 57530), (979, 52300), (1046, 48950), (1100, 46547), (1780, 28765), (1958, 26150), (2092, 24475), (2225, 23012), (2615, 19580), (3916, 13075), (4450, 11506), (4895, 10460), (5230, 9790), (5753, 8900)]