419748100

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{397}}^1$

素因数の和:617

約数の個数: 72

約数和(自身を含む): 931025480

約数和(自身を除く): 511277380

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 109, 194, 218, 388, 397, 436, 485, 545, 794, 970, 1090, 1588, 1940, 1985, 2180, 2425, 2725, 3970, 4850, 5450, 7940, 9700, 9925, 10573, 10900, 19850, 21146, 38509, 39700, 42292, 43273, 52865, 77018, 86546, 105730, 154036, 173092, 192545, 211460, 216365, 264325, 385090, 432730, 528650, 770180, 865460, 962725, 1057300, 1081825, 1925450, 2163650, 3850900, 4197481, 4327300, 8394962, 16789924, 20987405, 41974810, 83949620, 104937025, 209874050, 419748100]

約数ペア:

[(1, 419748100), (2, 209874050), (4, 104937025), (5, 83949620), (10, 41974810), (20, 20987405), (25, 16789924), (50, 8394962), (97, 4327300), (100, 4197481), (109, 3850900), (194, 2163650), (218, 1925450), (388, 1081825), (397, 1057300), (436, 962725), (485, 865460), (545, 770180), (794, 528650), (970, 432730), (1090, 385090), (1588, 264325), (1940, 216365), (1985, 211460), (2180, 192545), (2425, 173092), (2725, 154036), (3970, 105730), (4850, 86546), (5450, 77018), (7940, 52865), (9700, 43273), (9925, 42292), (10573, 39700), (10900, 38509), (19850, 21146)]