28309820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{593}}^1$

素因数の和:651

約数の個数: 96

約数和(自身を含む): 76640256

約数和(自身を除く): 48330436

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 55, 62, 70, 77, 110, 124, 140, 154, 155, 217, 220, 308, 310, 341, 385, 434, 593, 620, 682, 770, 868, 1085, 1186, 1364, 1540, 1705, 2170, 2372, 2387, 2965, 3410, 4151, 4340, 4774, 5930, 6523, 6820, 8302, 9548, 11860, 11935, 13046, 16604, 18383, 20755, 23870, 26092, 32615, 36766, 41510, 45661, 47740, 65230, 73532, 83020, 91322, 91915, 128681, 130460, 182644, 183830, 202213, 228305, 257362, 367660, 404426, 456610, 514724, 643405, 808852, 913220, 1011065, 1286810, 1415491, 2022130, 2573620, 2830982, 4044260, 5661964, 7077455, 14154910, 28309820]

約数ペア:

[(1, 28309820), (2, 14154910), (4, 7077455), (5, 5661964), (7, 4044260), (10, 2830982), (11, 2573620), (14, 2022130), (20, 1415491), (22, 1286810), (28, 1011065), (31, 913220), (35, 808852), (44, 643405), (55, 514724), (62, 456610), (70, 404426), (77, 367660), (110, 257362), (124, 228305), (140, 202213), (154, 183830), (155, 182644), (217, 130460), (220, 128681), (308, 91915), (310, 91322), (341, 83020), (385, 73532), (434, 65230), (593, 47740), (620, 45661), (682, 41510), (770, 36766), (868, 32615), (1085, 26092), (1186, 23870), (1364, 20755), (1540, 18383), (1705, 16604), (2170, 13046), (2372, 11935), (2387, 11860), (2965, 9548), (3410, 8302), (4151, 6820), (4340, 6523), (4774, 5930)]