42637840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:249

約数の個数: 120

約数和(自身を含む): 117682200

約数和(自身を除く): 75044360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 73, 80, 98, 112, 140, 146, 149, 196, 245, 280, 292, 298, 365, 392, 490, 511, 560, 584, 596, 730, 745, 784, 980, 1022, 1043, 1168, 1192, 1460, 1490, 1960, 2044, 2086, 2384, 2555, 2920, 2980, 3577, 3920, 4088, 4172, 5110, 5215, 5840, 5960, 7154, 7301, 8176, 8344, 10220, 10430, 10877, 11920, 14308, 14602, 16688, 17885, 20440, 20860, 21754, 28616, 29204, 35770, 36505, 40880, 41720, 43508, 54385, 57232, 58408, 71540, 73010, 76139, 83440, 87016, 108770, 116816, 143080, 146020, 152278, 174032, 217540, 286160, 292040, 304556, 380695, 435080, 532973, 584080, 609112, 761390, 870160, 1065946, 1218224, 1522780, 2131892, 2664865, 3045560, 4263784, 5329730, 6091120, 8527568, 10659460, 21318920, 42637840]

約数ペア:

[(1, 42637840), (2, 21318920), (4, 10659460), (5, 8527568), (7, 6091120), (8, 5329730), (10, 4263784), (14, 3045560), (16, 2664865), (20, 2131892), (28, 1522780), (35, 1218224), (40, 1065946), (49, 870160), (56, 761390), (70, 609112), (73, 584080), (80, 532973), (98, 435080), (112, 380695), (140, 304556), (146, 292040), (149, 286160), (196, 217540), (245, 174032), (280, 152278), (292, 146020), (298, 143080), (365, 116816), (392, 108770), (490, 87016), (511, 83440), (560, 76139), (584, 73010), (596, 71540), (730, 58408), (745, 57232), (784, 54385), (980, 43508), (1022, 41720), (1043, 40880), (1168, 36505), (1192, 35770), (1460, 29204), (1490, 28616), (1960, 21754), (2044, 20860), (2086, 20440), (2384, 17885), (2555, 16688), (2920, 14602), (2980, 14308), (3577, 11920), (3920, 10877), (4088, 10430), (4172, 10220), (5110, 8344), (5215, 8176), (5840, 7301), (5960, 7154)]