28275100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1303}}^1$

素因数の和:1355

約数の個数: 72

約数和(自身を含む): 72439808

約数和(自身を除く): 44164708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 100, 124, 140, 155, 175, 217, 310, 350, 434, 620, 700, 775, 868, 1085, 1303, 1550, 2170, 2606, 3100, 4340, 5212, 5425, 6515, 9121, 10850, 13030, 18242, 21700, 26060, 32575, 36484, 40393, 45605, 65150, 80786, 91210, 130300, 161572, 182420, 201965, 228025, 282751, 403930, 456050, 565502, 807860, 912100, 1009825, 1131004, 1413755, 2019650, 2827510, 4039300, 5655020, 7068775, 14137550, 28275100]

約数ペア:

[(1, 28275100), (2, 14137550), (4, 7068775), (5, 5655020), (7, 4039300), (10, 2827510), (14, 2019650), (20, 1413755), (25, 1131004), (28, 1009825), (31, 912100), (35, 807860), (50, 565502), (62, 456050), (70, 403930), (100, 282751), (124, 228025), (140, 201965), (155, 182420), (175, 161572), (217, 130300), (310, 91210), (350, 80786), (434, 65150), (620, 45605), (700, 40393), (775, 36484), (868, 32575), (1085, 26060), (1303, 21700), (1550, 18242), (2170, 13030), (2606, 10850), (3100, 9121), (4340, 6515), (5212, 5425)]