20121388300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{269}}^1\times {\mathrm{353}}^1$

素因数の和:812

約数の個数: 144

約数和(自身を含む): 47621014560

約数和(自身を除く): 27499626260

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 163, 260, 269, 325, 326, 353, 538, 650, 652, 706, 815, 1076, 1300, 1345, 1412, 1630, 1765, 2119, 2690, 3260, 3497, 3530, 4075, 4238, 4589, 5380, 6725, 6994, 7060, 8150, 8476, 8825, 9178, 10595, 13450, 13988, 16300, 17485, 17650, 18356, 21190, 22945, 26900, 34970, 35300, 42380, 43847, 45890, 52975, 57539, 69940, 87425, 87694, 91780, 94957, 105950, 114725, 115078, 174850, 175388, 189914, 211900, 219235, 229450, 230156, 287695, 349700, 379828, 438470, 458900, 474785, 570011, 575390, 748007, 876940, 949570, 1096175, 1140022, 1150780, 1234441, 1438475, 1496014, 1899140, 2192350, 2280044, 2373925, 2468882, 2850055, 2876950, 2992028, 3740035, 4384700, 4747850, 4937764, 5700110, 5753900, 6172205, 7480070, 9495700, 11400220, 12344410, 14250275, 14960140, 15477991, 18700175, 24688820, 28500550, 30861025, 30955982, 37400350, 57001100, 61722050, 61911964, 74800700, 77389955, 123444100, 154779910, 201213883, 309559820, 386949775, 402427766, 773899550, 804855532, 1006069415, 1547799100, 2012138830, 4024277660, 5030347075, 10060694150, 20121388300]

約数ペア:

[(1, 20121388300), (2, 10060694150), (4, 5030347075), (5, 4024277660), (10, 2012138830), (13, 1547799100), (20, 1006069415), (25, 804855532), (26, 773899550), (50, 402427766), (52, 386949775), (65, 309559820), (100, 201213883), (130, 154779910), (163, 123444100), (260, 77389955), (269, 74800700), (325, 61911964), (326, 61722050), (353, 57001100), (538, 37400350), (650, 30955982), (652, 30861025), (706, 28500550), (815, 24688820), (1076, 18700175), (1300, 15477991), (1345, 14960140), (1412, 14250275), (1630, 12344410), (1765, 11400220), (2119, 9495700), (2690, 7480070), (3260, 6172205), (3497, 5753900), (3530, 5700110), (4075, 4937764), (4238, 4747850), (4589, 4384700), (5380, 3740035), (6725, 2992028), (6994, 2876950), (7060, 2850055), (8150, 2468882), (8476, 2373925), (8825, 2280044), (9178, 2192350), (10595, 1899140), (13450, 1496014), (13988, 1438475), (16300, 1234441), (17485, 1150780), (17650, 1140022), (18356, 1096175), (21190, 949570), (22945, 876940), (26900, 748007), (34970, 575390), (35300, 570011), (42380, 474785), (43847, 458900), (45890, 438470), (52975, 379828), (57539, 349700), (69940, 287695), (87425, 230156), (87694, 229450), (91780, 219235), (94957, 211900), (105950, 189914), (114725, 175388), (115078, 174850)]