18106480

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:207

約数の個数: 120

約数和(自身を含む): 50889600

約数和(自身を除く): 32783120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 149, 155, 196, 217, 245, 248, 280, 298, 310, 392, 434, 490, 496, 560, 596, 620, 745, 784, 868, 980, 1043, 1085, 1192, 1240, 1490, 1519, 1736, 1960, 2086, 2170, 2384, 2480, 2980, 3038, 3472, 3920, 4172, 4340, 4619, 5215, 5960, 6076, 7301, 7595, 8344, 8680, 9238, 10430, 11920, 12152, 14602, 15190, 16688, 17360, 18476, 20860, 23095, 24304, 29204, 30380, 32333, 36505, 36952, 41720, 46190, 58408, 60760, 64666, 73010, 73904, 83440, 92380, 116816, 121520, 129332, 146020, 161665, 184760, 226331, 258664, 292040, 323330, 369520, 452662, 517328, 584080, 646660, 905324, 1131655, 1293320, 1810648, 2263310, 2586640, 3621296, 4526620, 9053240, 18106480]

約数ペア:

[(1, 18106480), (2, 9053240), (4, 4526620), (5, 3621296), (7, 2586640), (8, 2263310), (10, 1810648), (14, 1293320), (16, 1131655), (20, 905324), (28, 646660), (31, 584080), (35, 517328), (40, 452662), (49, 369520), (56, 323330), (62, 292040), (70, 258664), (80, 226331), (98, 184760), (112, 161665), (124, 146020), (140, 129332), (149, 121520), (155, 116816), (196, 92380), (217, 83440), (245, 73904), (248, 73010), (280, 64666), (298, 60760), (310, 58408), (392, 46190), (434, 41720), (490, 36952), (496, 36505), (560, 32333), (596, 30380), (620, 29204), (745, 24304), (784, 23095), (868, 20860), (980, 18476), (1043, 17360), (1085, 16688), (1192, 15190), (1240, 14602), (1490, 12152), (1519, 11920), (1736, 10430), (1960, 9238), (2086, 8680), (2170, 8344), (2384, 7595), (2480, 7301), (2980, 6076), (3038, 5960), (3472, 5215), (3920, 4619), (4172, 4340)]