1281878520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{2039}}^1$

素因数の和:2110

約数の個数: 192

約数和(自身を含む): 4300646400

約数和(自身を除く): 3018767880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 93, 104, 120, 124, 130, 155, 156, 169, 186, 195, 248, 260, 310, 312, 338, 372, 390, 403, 465, 507, 520, 620, 676, 744, 780, 806, 845, 930, 1014, 1209, 1240, 1352, 1560, 1612, 1690, 1860, 2015, 2028, 2039, 2418, 2535, 3224, 3380, 3720, 4030, 4056, 4078, 4836, 5070, 5239, 6045, 6117, 6760, 8060, 8156, 9672, 10140, 10195, 10478, 12090, 12234, 15717, 16120, 16312, 20280, 20390, 20956, 24180, 24468, 26195, 26507, 30585, 31434, 40780, 41912, 48360, 48936, 52390, 53014, 61170, 62868, 63209, 78585, 79521, 81560, 104780, 106028, 122340, 125736, 126418, 132535, 157170, 159042, 189627, 209560, 212056, 244680, 252836, 265070, 314340, 316045, 318084, 344591, 379254, 397605, 505672, 530140, 628680, 632090, 636168, 689182, 758508, 795210, 821717, 948135, 1033773, 1060280, 1264180, 1378364, 1517016, 1590420, 1643434, 1722955, 1896270, 2067546, 2465151, 2528360, 2756728, 3180840, 3286868, 3445910, 3792540, 4108585, 4135092, 4930302, 5168865, 6573736, 6891820, 7585080, 8217170, 8270184, 9860604, 10337730, 10682321, 12325755, 13783640, 16434340, 19721208, 20675460, 21364642, 24651510, 32046963, 32868680, 41350920, 42729284, 49303020, 53411605, 64093926, 85458568, 98606040, 106823210, 128187852, 160234815, 213646420, 256375704, 320469630, 427292840, 640939260, 1281878520]

約数ペア:

[(1, 1281878520), (2, 640939260), (3, 427292840), (4, 320469630), (5, 256375704), (6, 213646420), (8, 160234815), (10, 128187852), (12, 106823210), (13, 98606040), (15, 85458568), (20, 64093926), (24, 53411605), (26, 49303020), (30, 42729284), (31, 41350920), (39, 32868680), (40, 32046963), (52, 24651510), (60, 21364642), (62, 20675460), (65, 19721208), (78, 16434340), (93, 13783640), (104, 12325755), (120, 10682321), (124, 10337730), (130, 9860604), (155, 8270184), (156, 8217170), (169, 7585080), (186, 6891820), (195, 6573736), (248, 5168865), (260, 4930302), (310, 4135092), (312, 4108585), (338, 3792540), (372, 3445910), (390, 3286868), (403, 3180840), (465, 2756728), (507, 2528360), (520, 2465151), (620, 2067546), (676, 1896270), (744, 1722955), (780, 1643434), (806, 1590420), (845, 1517016), (930, 1378364), (1014, 1264180), (1209, 1060280), (1240, 1033773), (1352, 948135), (1560, 821717), (1612, 795210), (1690, 758508), (1860, 689182), (2015, 636168), (2028, 632090), (2039, 628680), (2418, 530140), (2535, 505672), (3224, 397605), (3380, 379254), (3720, 344591), (4030, 318084), (4056, 316045), (4078, 314340), (4836, 265070), (5070, 252836), (5239, 244680), (6045, 212056), (6117, 209560), (6760, 189627), (8060, 159042), (8156, 157170), (9672, 132535), (10140, 126418), (10195, 125736), (10478, 122340), (12090, 106028), (12234, 104780), (15717, 81560), (16120, 79521), (16312, 78585), (20280, 63209), (20390, 62868), (20956, 61170), (24180, 53014), (24468, 52390), (26195, 48936), (26507, 48360), (30585, 41912), (31434, 40780)]