640917310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:326

約数の個数: 128

約数和(自身を含む): 1410048000

約数和(自身を除く): 769130690

約数列:

[1, 2, 5, 10, 11, 19, 22, 23, 38, 46, 55, 67, 95, 110, 115, 134, 190, 199, 209, 230, 253, 335, 398, 418, 437, 506, 670, 737, 874, 995, 1045, 1265, 1273, 1474, 1541, 1990, 2090, 2185, 2189, 2530, 2546, 3082, 3685, 3781, 4370, 4378, 4577, 4807, 6365, 7370, 7562, 7705, 9154, 9614, 10945, 12730, 13333, 14003, 15410, 16951, 18905, 21890, 22885, 24035, 26666, 28006, 29279, 33902, 37810, 41591, 45770, 48070, 50347, 58558, 66665, 70015, 83182, 84755, 86963, 100694, 133330, 140030, 146395, 146663, 169510, 173926, 207955, 251735, 253327, 292790, 293326, 306659, 322069, 415910, 434815, 503470, 506654, 613318, 644138, 733315, 869630, 956593, 1266635, 1466630, 1533295, 1610345, 1913186, 2533270, 2786597, 3066590, 3220690, 3373249, 4782965, 5573194, 5826521, 6746498, 9565930, 11653042, 13932985, 16866245, 27865970, 29132605, 33732490, 58265210, 64091731, 128183462, 320458655, 640917310]

約数ペア:

[(1, 640917310), (2, 320458655), (5, 128183462), (10, 64091731), (11, 58265210), (19, 33732490), (22, 29132605), (23, 27865970), (38, 16866245), (46, 13932985), (55, 11653042), (67, 9565930), (95, 6746498), (110, 5826521), (115, 5573194), (134, 4782965), (190, 3373249), (199, 3220690), (209, 3066590), (230, 2786597), (253, 2533270), (335, 1913186), (398, 1610345), (418, 1533295), (437, 1466630), (506, 1266635), (670, 956593), (737, 869630), (874, 733315), (995, 644138), (1045, 613318), (1265, 506654), (1273, 503470), (1474, 434815), (1541, 415910), (1990, 322069), (2090, 306659), (2185, 293326), (2189, 292790), (2530, 253327), (2546, 251735), (3082, 207955), (3685, 173926), (3781, 169510), (4370, 146663), (4378, 146395), (4577, 140030), (4807, 133330), (6365, 100694), (7370, 86963), (7562, 84755), (7705, 83182), (9154, 70015), (9614, 66665), (10945, 58558), (12730, 50347), (13333, 48070), (14003, 45770), (15410, 41591), (16951, 37810), (18905, 33902), (21890, 29279), (22885, 28006), (24035, 26666)]