260603980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{149}}^1$

素因数の和:240

約数の個数: 144

約数和(自身を含む): 700660800

約数和(自身を除く): 440056820

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 52, 62, 65, 70, 91, 124, 130, 140, 149, 155, 182, 217, 260, 298, 310, 364, 403, 434, 455, 596, 620, 745, 806, 868, 910, 961, 1043, 1085, 1490, 1612, 1820, 1922, 1937, 2015, 2086, 2170, 2821, 2980, 3844, 3874, 4030, 4172, 4340, 4619, 4805, 5215, 5642, 6727, 7748, 8060, 9238, 9610, 9685, 10430, 11284, 12493, 13454, 13559, 14105, 18476, 19220, 19370, 20860, 23095, 24986, 26908, 27118, 28210, 32333, 33635, 38740, 46190, 49972, 54236, 56420, 60047, 62465, 64666, 67270, 67795, 87451, 92380, 120094, 124930, 129332, 134540, 135590, 143189, 161665, 174902, 240188, 249860, 271180, 286378, 300235, 323330, 349804, 420329, 437255, 572756, 600470, 646660, 715945, 840658, 874510, 1002323, 1200940, 1431890, 1681316, 1749020, 1861457, 2004646, 2101645, 2863780, 3722914, 4009292, 4203290, 5011615, 7445828, 8406580, 9307285, 10023230, 13030199, 18614570, 20046460, 26060398, 37229140, 52120796, 65150995, 130301990, 260603980]

約数ペア:

[(1, 260603980), (2, 130301990), (4, 65150995), (5, 52120796), (7, 37229140), (10, 26060398), (13, 20046460), (14, 18614570), (20, 13030199), (26, 10023230), (28, 9307285), (31, 8406580), (35, 7445828), (52, 5011615), (62, 4203290), (65, 4009292), (70, 3722914), (91, 2863780), (124, 2101645), (130, 2004646), (140, 1861457), (149, 1749020), (155, 1681316), (182, 1431890), (217, 1200940), (260, 1002323), (298, 874510), (310, 840658), (364, 715945), (403, 646660), (434, 600470), (455, 572756), (596, 437255), (620, 420329), (745, 349804), (806, 323330), (868, 300235), (910, 286378), (961, 271180), (1043, 249860), (1085, 240188), (1490, 174902), (1612, 161665), (1820, 143189), (1922, 135590), (1937, 134540), (2015, 129332), (2086, 124930), (2170, 120094), (2821, 92380), (2980, 87451), (3844, 67795), (3874, 67270), (4030, 64666), (4172, 62465), (4340, 60047), (4619, 56420), (4805, 54236), (5215, 49972), (5642, 46190), (6727, 38740), (7748, 33635), (8060, 32333), (9238, 28210), (9610, 27118), (9685, 26908), (10430, 24986), (11284, 23095), (12493, 20860), (13454, 19370), (13559, 19220), (14105, 18476)]