28808180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1613}}^1$

素因数の和:1688

約数の個数: 48

約数和(自身を含む): 65076480

約数和(自身を除く): 36268300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1613, 1786, 3226, 3572, 4465, 6452, 8065, 8930, 16130, 17860, 30647, 32260, 61294, 75811, 122588, 151622, 153235, 303244, 306470, 379055, 612940, 758110, 1440409, 1516220, 2880818, 5761636, 7202045, 14404090, 28808180]

約数ペア:

[(1, 28808180), (2, 14404090), (4, 7202045), (5, 5761636), (10, 2880818), (19, 1516220), (20, 1440409), (38, 758110), (47, 612940), (76, 379055), (94, 306470), (95, 303244), (188, 153235), (190, 151622), (235, 122588), (380, 75811), (470, 61294), (893, 32260), (940, 30647), (1613, 17860), (1786, 16130), (3226, 8930), (3572, 8065), (4465, 6452)]