641300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{53}}^1$

素因数の和:89

約数の個数: 54

約数和(自身を含む): 1558494

約数和(自身を除く): 917194

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 53, 55, 100, 106, 110, 121, 212, 220, 242, 265, 275, 484, 530, 550, 583, 605, 1060, 1100, 1166, 1210, 1325, 2332, 2420, 2650, 2915, 3025, 5300, 5830, 6050, 6413, 11660, 12100, 12826, 14575, 25652, 29150, 32065, 58300, 64130, 128260, 160325, 320650, 641300]

約数ペア:

[(1, 641300), (2, 320650), (4, 160325), (5, 128260), (10, 64130), (11, 58300), (20, 32065), (22, 29150), (25, 25652), (44, 14575), (50, 12826), (53, 12100), (55, 11660), (100, 6413), (106, 6050), (110, 5830), (121, 5300), (212, 3025), (220, 2915), (242, 2650), (265, 2420), (275, 2332), (484, 1325), (530, 1210), (550, 1166), (583, 1100), (605, 1060)]