64921860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{463}}^1$

素因数の和:538

約数の個数: 144

約数和(自身を含む): 212808960

約数和(自身を除く): 147887100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 41, 45, 57, 60, 76, 82, 90, 95, 114, 123, 164, 171, 180, 190, 205, 228, 246, 285, 342, 369, 380, 410, 463, 492, 570, 615, 684, 738, 779, 820, 855, 926, 1140, 1230, 1389, 1476, 1558, 1710, 1845, 1852, 2315, 2337, 2460, 2778, 3116, 3420, 3690, 3895, 4167, 4630, 4674, 5556, 6945, 7011, 7380, 7790, 8334, 8797, 9260, 9348, 11685, 13890, 14022, 15580, 16668, 17594, 18983, 20835, 23370, 26391, 27780, 28044, 35055, 35188, 37966, 41670, 43985, 46740, 52782, 56949, 70110, 75932, 79173, 83340, 87970, 94915, 105564, 113898, 131955, 140220, 158346, 170847, 175940, 189830, 227796, 263910, 284745, 316692, 341694, 360677, 379660, 395865, 527820, 569490, 683388, 721354, 791730, 854235, 1082031, 1138980, 1442708, 1583460, 1708470, 1803385, 2164062, 3246093, 3416940, 3606770, 4328124, 5410155, 6492186, 7213540, 10820310, 12984372, 16230465, 21640620, 32460930, 64921860]

約数ペア:

[(1, 64921860), (2, 32460930), (3, 21640620), (4, 16230465), (5, 12984372), (6, 10820310), (9, 7213540), (10, 6492186), (12, 5410155), (15, 4328124), (18, 3606770), (19, 3416940), (20, 3246093), (30, 2164062), (36, 1803385), (38, 1708470), (41, 1583460), (45, 1442708), (57, 1138980), (60, 1082031), (76, 854235), (82, 791730), (90, 721354), (95, 683388), (114, 569490), (123, 527820), (164, 395865), (171, 379660), (180, 360677), (190, 341694), (205, 316692), (228, 284745), (246, 263910), (285, 227796), (342, 189830), (369, 175940), (380, 170847), (410, 158346), (463, 140220), (492, 131955), (570, 113898), (615, 105564), (684, 94915), (738, 87970), (779, 83340), (820, 79173), (855, 75932), (926, 70110), (1140, 56949), (1230, 52782), (1389, 46740), (1476, 43985), (1558, 41670), (1710, 37966), (1845, 35188), (1852, 35055), (2315, 28044), (2337, 27780), (2460, 26391), (2778, 23370), (3116, 20835), (3420, 18983), (3690, 17594), (3895, 16668), (4167, 15580), (4630, 14022), (4674, 13890), (5556, 11685), (6945, 9348), (7011, 9260), (7380, 8797), (7790, 8334)]