129551480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{547}}^1$

素因数の和:780

約数の個数: 64

約数和(自身を含む): 303022080

約数和(自身を除く): 173470600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 191, 248, 310, 382, 547, 620, 764, 955, 1094, 1240, 1528, 1910, 2188, 2735, 3820, 4376, 5470, 5921, 7640, 10940, 11842, 16957, 21880, 23684, 29605, 33914, 47368, 59210, 67828, 84785, 104477, 118420, 135656, 169570, 208954, 236840, 339140, 417908, 522385, 678280, 835816, 1044770, 2089540, 3238787, 4179080, 6477574, 12955148, 16193935, 25910296, 32387870, 64775740, 129551480]

約数ペア:

[(1, 129551480), (2, 64775740), (4, 32387870), (5, 25910296), (8, 16193935), (10, 12955148), (20, 6477574), (31, 4179080), (40, 3238787), (62, 2089540), (124, 1044770), (155, 835816), (191, 678280), (248, 522385), (310, 417908), (382, 339140), (547, 236840), (620, 208954), (764, 169570), (955, 135656), (1094, 118420), (1240, 104477), (1528, 84785), (1910, 67828), (2188, 59210), (2735, 47368), (3820, 33914), (4376, 29605), (5470, 23684), (5921, 21880), (7640, 16957), (10940, 11842)]