28172970

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{227}}^1$

素因数の和:444

約数の個数: 96

約数和(自身を含む): 84509568

約数和(自身を除く): 56336598

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 197, 210, 227, 315, 394, 454, 591, 630, 681, 985, 1135, 1182, 1362, 1379, 1589, 1773, 1970, 2043, 2270, 2758, 2955, 3178, 3405, 3546, 4086, 4137, 4767, 5910, 6810, 6895, 7945, 8274, 8865, 9534, 10215, 12411, 13790, 14301, 15890, 17730, 20430, 20685, 23835, 24822, 28602, 41370, 44719, 47670, 62055, 71505, 89438, 124110, 134157, 143010, 223595, 268314, 313033, 402471, 447190, 626066, 670785, 804942, 939099, 1341570, 1565165, 1878198, 2012355, 2817297, 3130330, 4024710, 4695495, 5634594, 9390990, 14086485, 28172970]

約数ペア:

[(1, 28172970), (2, 14086485), (3, 9390990), (5, 5634594), (6, 4695495), (7, 4024710), (9, 3130330), (10, 2817297), (14, 2012355), (15, 1878198), (18, 1565165), (21, 1341570), (30, 939099), (35, 804942), (42, 670785), (45, 626066), (63, 447190), (70, 402471), (90, 313033), (105, 268314), (126, 223595), (197, 143010), (210, 134157), (227, 124110), (315, 89438), (394, 71505), (454, 62055), (591, 47670), (630, 44719), (681, 41370), (985, 28602), (1135, 24822), (1182, 23835), (1362, 20685), (1379, 20430), (1589, 17730), (1773, 15890), (1970, 14301), (2043, 13790), (2270, 12411), (2758, 10215), (2955, 9534), (3178, 8865), (3405, 8274), (3546, 7945), (4086, 6895), (4137, 6810), (4767, 5910)]