1270422020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{359}}^1$

素因数の和:562

約数の個数: 144

約数和(自身を含む): 3268097280

約数和(自身を除く): 1997675260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 157, 161, 196, 230, 245, 314, 322, 359, 460, 490, 628, 644, 718, 785, 805, 980, 1099, 1127, 1436, 1570, 1610, 1795, 2198, 2254, 2513, 3140, 3220, 3590, 3611, 4396, 4508, 5026, 5495, 5635, 7180, 7222, 7693, 8257, 10052, 10990, 11270, 12565, 14444, 15386, 16514, 17591, 18055, 21980, 22540, 25130, 25277, 30772, 33028, 35182, 36110, 38465, 41285, 50260, 50554, 56363, 57799, 70364, 72220, 76930, 82570, 87955, 101108, 112726, 115598, 126385, 153860, 165140, 175910, 176939, 225452, 231196, 252770, 281815, 288995, 351820, 353878, 394541, 404593, 505540, 563630, 577990, 707756, 789082, 809186, 884695, 1127260, 1155980, 1296349, 1578164, 1618372, 1769390, 1972705, 2022965, 2592698, 2761787, 3538780, 3945410, 4045930, 5185396, 5523574, 6481745, 7890820, 8091860, 9074443, 11047148, 12963490, 13808935, 18148886, 25926980, 27617870, 36297772, 45372215, 55235740, 63521101, 90744430, 127042202, 181488860, 254084404, 317605505, 635211010, 1270422020]

約数ペア:

[(1, 1270422020), (2, 635211010), (4, 317605505), (5, 254084404), (7, 181488860), (10, 127042202), (14, 90744430), (20, 63521101), (23, 55235740), (28, 45372215), (35, 36297772), (46, 27617870), (49, 25926980), (70, 18148886), (92, 13808935), (98, 12963490), (115, 11047148), (140, 9074443), (157, 8091860), (161, 7890820), (196, 6481745), (230, 5523574), (245, 5185396), (314, 4045930), (322, 3945410), (359, 3538780), (460, 2761787), (490, 2592698), (628, 2022965), (644, 1972705), (718, 1769390), (785, 1618372), (805, 1578164), (980, 1296349), (1099, 1155980), (1127, 1127260), (1436, 884695), (1570, 809186), (1610, 789082), (1795, 707756), (2198, 577990), (2254, 563630), (2513, 505540), (3140, 404593), (3220, 394541), (3590, 353878), (3611, 351820), (4396, 288995), (4508, 281815), (5026, 252770), (5495, 231196), (5635, 225452), (7180, 176939), (7222, 175910), (7693, 165140), (8257, 153860), (10052, 126385), (10990, 115598), (11270, 112726), (12565, 101108), (14444, 87955), (15386, 82570), (16514, 76930), (17591, 72220), (18055, 70364), (21980, 57799), (22540, 56363), (25130, 50554), (25277, 50260), (30772, 41285), (33028, 38465), (35182, 36110)]