18857300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:142

約数の個数: 144

約数和(自身を含む): 53329920

約数和(自身を除く): 34472620

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 31, 35, 44, 50, 55, 62, 70, 77, 79, 100, 110, 124, 140, 154, 155, 158, 175, 217, 220, 275, 308, 310, 316, 341, 350, 385, 395, 434, 550, 553, 620, 682, 700, 770, 775, 790, 868, 869, 1085, 1100, 1106, 1364, 1540, 1550, 1580, 1705, 1738, 1925, 1975, 2170, 2212, 2387, 2449, 2765, 3100, 3410, 3476, 3850, 3950, 4340, 4345, 4774, 4898, 5425, 5530, 6083, 6820, 7700, 7900, 8525, 8690, 9548, 9796, 10850, 11060, 11935, 12166, 12245, 13825, 17050, 17143, 17380, 21700, 21725, 23870, 24332, 24490, 26939, 27650, 30415, 34100, 34286, 43450, 47740, 48980, 53878, 55300, 59675, 60830, 61225, 68572, 85715, 86900, 107756, 119350, 121660, 122450, 134695, 152075, 171430, 188573, 238700, 244900, 269390, 304150, 342860, 377146, 428575, 538780, 608300, 673475, 754292, 857150, 942865, 1346950, 1714300, 1885730, 2693900, 3771460, 4714325, 9428650, 18857300]

約数ペア:

[(1, 18857300), (2, 9428650), (4, 4714325), (5, 3771460), (7, 2693900), (10, 1885730), (11, 1714300), (14, 1346950), (20, 942865), (22, 857150), (25, 754292), (28, 673475), (31, 608300), (35, 538780), (44, 428575), (50, 377146), (55, 342860), (62, 304150), (70, 269390), (77, 244900), (79, 238700), (100, 188573), (110, 171430), (124, 152075), (140, 134695), (154, 122450), (155, 121660), (158, 119350), (175, 107756), (217, 86900), (220, 85715), (275, 68572), (308, 61225), (310, 60830), (316, 59675), (341, 55300), (350, 53878), (385, 48980), (395, 47740), (434, 43450), (550, 34286), (553, 34100), (620, 30415), (682, 27650), (700, 26939), (770, 24490), (775, 24332), (790, 23870), (868, 21725), (869, 21700), (1085, 17380), (1100, 17143), (1106, 17050), (1364, 13825), (1540, 12245), (1550, 12166), (1580, 11935), (1705, 11060), (1738, 10850), (1925, 9796), (1975, 9548), (2170, 8690), (2212, 8525), (2387, 7900), (2449, 7700), (2765, 6820), (3100, 6083), (3410, 5530), (3476, 5425), (3850, 4898), (3950, 4774), (4340, 4345)]