51983120

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:265

約数の個数: 120

約数和(自身を含む): 143127000

約数和(自身を除く): 91143880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 89, 98, 112, 140, 149, 178, 196, 245, 280, 298, 356, 392, 445, 490, 560, 596, 623, 712, 745, 784, 890, 980, 1043, 1192, 1246, 1424, 1490, 1780, 1960, 2086, 2384, 2492, 2980, 3115, 3560, 3920, 4172, 4361, 4984, 5215, 5960, 6230, 7120, 7301, 8344, 8722, 9968, 10430, 11920, 12460, 13261, 14602, 16688, 17444, 20860, 21805, 24920, 26522, 29204, 34888, 36505, 41720, 43610, 49840, 53044, 58408, 66305, 69776, 73010, 83440, 87220, 92827, 106088, 116816, 132610, 146020, 174440, 185654, 212176, 265220, 292040, 348880, 371308, 464135, 530440, 584080, 649789, 742616, 928270, 1060880, 1299578, 1485232, 1856540, 2599156, 3248945, 3713080, 5198312, 6497890, 7426160, 10396624, 12995780, 25991560, 51983120]

約数ペア:

[(1, 51983120), (2, 25991560), (4, 12995780), (5, 10396624), (7, 7426160), (8, 6497890), (10, 5198312), (14, 3713080), (16, 3248945), (20, 2599156), (28, 1856540), (35, 1485232), (40, 1299578), (49, 1060880), (56, 928270), (70, 742616), (80, 649789), (89, 584080), (98, 530440), (112, 464135), (140, 371308), (149, 348880), (178, 292040), (196, 265220), (245, 212176), (280, 185654), (298, 174440), (356, 146020), (392, 132610), (445, 116816), (490, 106088), (560, 92827), (596, 87220), (623, 83440), (712, 73010), (745, 69776), (784, 66305), (890, 58408), (980, 53044), (1043, 49840), (1192, 43610), (1246, 41720), (1424, 36505), (1490, 34888), (1780, 29204), (1960, 26522), (2086, 24920), (2384, 21805), (2492, 20860), (2980, 17444), (3115, 16688), (3560, 14602), (3920, 13261), (4172, 12460), (4361, 11920), (4984, 10430), (5215, 9968), (5960, 8722), (6230, 8344), (7120, 7301)]