15506820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:450

約数の個数: 144

約数和(自身を含む): 55630848

約数和(自身を除く): 40124028

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 397, 420, 434, 465, 558, 620, 630, 651, 794, 868, 930, 1085, 1116, 1191, 1260, 1302, 1395, 1588, 1860, 1953, 1985, 2170, 2382, 2604, 2779, 2790, 3255, 3573, 3906, 3970, 4340, 4764, 5558, 5580, 5955, 6510, 7146, 7812, 7940, 8337, 9765, 11116, 11910, 12307, 13020, 13895, 14292, 16674, 17865, 19530, 23820, 24614, 25011, 27790, 33348, 35730, 36921, 39060, 41685, 49228, 50022, 55580, 61535, 71460, 73842, 83370, 86149, 100044, 110763, 123070, 125055, 147684, 166740, 172298, 184605, 221526, 246140, 250110, 258447, 344596, 369210, 430745, 443052, 500220, 516894, 553815, 738420, 775341, 861490, 1033788, 1107630, 1292235, 1550682, 1722980, 2215260, 2584470, 3101364, 3876705, 5168940, 7753410, 15506820]

約数ペア:

[(1, 15506820), (2, 7753410), (3, 5168940), (4, 3876705), (5, 3101364), (6, 2584470), (7, 2215260), (9, 1722980), (10, 1550682), (12, 1292235), (14, 1107630), (15, 1033788), (18, 861490), (20, 775341), (21, 738420), (28, 553815), (30, 516894), (31, 500220), (35, 443052), (36, 430745), (42, 369210), (45, 344596), (60, 258447), (62, 250110), (63, 246140), (70, 221526), (84, 184605), (90, 172298), (93, 166740), (105, 147684), (124, 125055), (126, 123070), (140, 110763), (155, 100044), (180, 86149), (186, 83370), (210, 73842), (217, 71460), (252, 61535), (279, 55580), (310, 50022), (315, 49228), (372, 41685), (397, 39060), (420, 36921), (434, 35730), (465, 33348), (558, 27790), (620, 25011), (630, 24614), (651, 23820), (794, 19530), (868, 17865), (930, 16674), (1085, 14292), (1116, 13895), (1191, 13020), (1260, 12307), (1302, 11910), (1395, 11116), (1588, 9765), (1860, 8337), (1953, 7940), (1985, 7812), (2170, 7146), (2382, 6510), (2604, 5955), (2779, 5580), (2790, 5558), (3255, 4764), (3573, 4340), (3906, 3970)]