221639940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{283}}^1$

素因数の和:546

約数の個数: 144

約数和(自身を含む): 713294400

約数和(自身を除く): 491654460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 229, 283, 285, 342, 380, 458, 566, 570, 684, 687, 849, 855, 916, 1132, 1140, 1145, 1374, 1415, 1698, 1710, 2061, 2290, 2547, 2748, 2830, 3396, 3420, 3435, 4122, 4245, 4351, 4580, 5094, 5377, 5660, 6870, 8244, 8490, 8702, 10188, 10305, 10754, 12735, 13053, 13740, 16131, 16980, 17404, 20610, 21508, 21755, 25470, 26106, 26885, 32262, 39159, 41220, 43510, 48393, 50940, 52212, 53770, 64524, 64807, 65265, 78318, 80655, 87020, 96786, 107540, 129614, 130530, 156636, 161310, 193572, 194421, 195795, 241965, 259228, 261060, 322620, 324035, 388842, 391590, 483930, 583263, 648070, 777684, 783180, 967860, 972105, 1166526, 1231333, 1296140, 1944210, 2333052, 2462666, 2916315, 3693999, 3888420, 4925332, 5832630, 6156665, 7387998, 11081997, 11665260, 12313330, 14775996, 18469995, 22163994, 24626660, 36939990, 44327988, 55409985, 73879980, 110819970, 221639940]

約数ペア:

[(1, 221639940), (2, 110819970), (3, 73879980), (4, 55409985), (5, 44327988), (6, 36939990), (9, 24626660), (10, 22163994), (12, 18469995), (15, 14775996), (18, 12313330), (19, 11665260), (20, 11081997), (30, 7387998), (36, 6156665), (38, 5832630), (45, 4925332), (57, 3888420), (60, 3693999), (76, 2916315), (90, 2462666), (95, 2333052), (114, 1944210), (171, 1296140), (180, 1231333), (190, 1166526), (228, 972105), (229, 967860), (283, 783180), (285, 777684), (342, 648070), (380, 583263), (458, 483930), (566, 391590), (570, 388842), (684, 324035), (687, 322620), (849, 261060), (855, 259228), (916, 241965), (1132, 195795), (1140, 194421), (1145, 193572), (1374, 161310), (1415, 156636), (1698, 130530), (1710, 129614), (2061, 107540), (2290, 96786), (2547, 87020), (2748, 80655), (2830, 78318), (3396, 65265), (3420, 64807), (3435, 64524), (4122, 53770), (4245, 52212), (4351, 50940), (4580, 48393), (5094, 43510), (5377, 41220), (5660, 39159), (6870, 32262), (8244, 26885), (8490, 26106), (8702, 25470), (10188, 21755), (10305, 21508), (10754, 20610), (12735, 17404), (13053, 16980), (13740, 16131)]