831304420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{647}}^1\times {\mathrm{3779}}^1$

素因数の和:4452

約数の個数: 48

約数和(自身を含む): 1851776640

約数和(自身を除く): 1020472220

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 647, 1294, 2588, 3235, 3779, 6470, 7558, 10999, 12940, 15116, 18895, 21998, 37790, 43996, 54995, 64243, 75580, 109990, 128486, 219980, 256972, 321215, 642430, 1284860, 2445013, 4890026, 9780052, 12225065, 24450130, 41565221, 48900260, 83130442, 166260884, 207826105, 415652210, 831304420]

約数ペア:

[(1, 831304420), (2, 415652210), (4, 207826105), (5, 166260884), (10, 83130442), (17, 48900260), (20, 41565221), (34, 24450130), (68, 12225065), (85, 9780052), (170, 4890026), (340, 2445013), (647, 1284860), (1294, 642430), (2588, 321215), (3235, 256972), (3779, 219980), (6470, 128486), (7558, 109990), (10999, 75580), (12940, 64243), (15116, 54995), (18895, 43996), (21998, 37790)]