319893340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 779175936

約数和(自身を除く): 459282596

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 43, 52, 62, 65, 71, 86, 124, 130, 142, 155, 169, 172, 215, 260, 284, 310, 338, 355, 403, 430, 559, 620, 676, 710, 806, 845, 860, 923, 1118, 1333, 1420, 1612, 1690, 1846, 2015, 2201, 2236, 2666, 2795, 3053, 3380, 3692, 4030, 4402, 4615, 5239, 5332, 5590, 6106, 6665, 7267, 8060, 8804, 9230, 10478, 11005, 11180, 11999, 12212, 13330, 14534, 15265, 17329, 18460, 20956, 22010, 23998, 26195, 26660, 28613, 29068, 30530, 34658, 36335, 39689, 44020, 47996, 52390, 57226, 59995, 61060, 69316, 72670, 79378, 86645, 94643, 104780, 114452, 119990, 143065, 145340, 158756, 173290, 189286, 198445, 225277, 239980, 286130, 346580, 371969, 378572, 396890, 450554, 473215, 515957, 572260, 743938, 793780, 901108, 946430, 1031914, 1126385, 1230359, 1487876, 1859845, 1892860, 2063828, 2252770, 2460718, 2579785, 3719690, 4505540, 4921436, 5159570, 6151795, 7439380, 10319140, 12303590, 15994667, 24607180, 31989334, 63978668, 79973335, 159946670, 319893340]

約数ペア:

[(1, 319893340), (2, 159946670), (4, 79973335), (5, 63978668), (10, 31989334), (13, 24607180), (20, 15994667), (26, 12303590), (31, 10319140), (43, 7439380), (52, 6151795), (62, 5159570), (65, 4921436), (71, 4505540), (86, 3719690), (124, 2579785), (130, 2460718), (142, 2252770), (155, 2063828), (169, 1892860), (172, 1859845), (215, 1487876), (260, 1230359), (284, 1126385), (310, 1031914), (338, 946430), (355, 901108), (403, 793780), (430, 743938), (559, 572260), (620, 515957), (676, 473215), (710, 450554), (806, 396890), (845, 378572), (860, 371969), (923, 346580), (1118, 286130), (1333, 239980), (1420, 225277), (1612, 198445), (1690, 189286), (1846, 173290), (2015, 158756), (2201, 145340), (2236, 143065), (2666, 119990), (2795, 114452), (3053, 104780), (3380, 94643), (3692, 86645), (4030, 79378), (4402, 72670), (4615, 69316), (5239, 61060), (5332, 59995), (5590, 57226), (6106, 52390), (6665, 47996), (7267, 44020), (8060, 39689), (8804, 36335), (9230, 34658), (10478, 30530), (11005, 29068), (11180, 28613), (11999, 26660), (12212, 26195), (13330, 23998), (14534, 22010), (15265, 20956), (17329, 18460)]