31188780

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:285

約数の個数: 192

約数和(自身を含む): 114401280

約数和(自身を除く): 83212500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 37, 42, 45, 54, 60, 63, 70, 74, 84, 90, 105, 108, 111, 126, 135, 140, 148, 180, 185, 189, 210, 222, 223, 252, 259, 270, 315, 333, 370, 378, 420, 444, 446, 518, 540, 555, 630, 666, 669, 740, 756, 777, 892, 945, 999, 1036, 1110, 1115, 1260, 1295, 1332, 1338, 1554, 1561, 1665, 1890, 1998, 2007, 2220, 2230, 2331, 2590, 2676, 3108, 3122, 3330, 3345, 3780, 3885, 3996, 4014, 4460, 4662, 4683, 4995, 5180, 6021, 6244, 6660, 6690, 6993, 7770, 7805, 8028, 8251, 9324, 9366, 9990, 10035, 11655, 12042, 13380, 13986, 14049, 15540, 15610, 16502, 18732, 19980, 20070, 23310, 23415, 24084, 24753, 27972, 28098, 30105, 31220, 33004, 34965, 40140, 41255, 42147, 46620, 46830, 49506, 56196, 57757, 60210, 69930, 70245, 74259, 82510, 84294, 93660, 99012, 115514, 120420, 123765, 139860, 140490, 148518, 165020, 168588, 173271, 210735, 222777, 231028, 247530, 280980, 288785, 297036, 346542, 371295, 421470, 445554, 495060, 519813, 577570, 693084, 742590, 842940, 866355, 891108, 1039626, 1113885, 1155140, 1485180, 1559439, 1732710, 2079252, 2227770, 2599065, 3118878, 3465420, 4455540, 5198130, 6237756, 7797195, 10396260, 15594390, 31188780]

約数ペア:

[(1, 31188780), (2, 15594390), (3, 10396260), (4, 7797195), (5, 6237756), (6, 5198130), (7, 4455540), (9, 3465420), (10, 3118878), (12, 2599065), (14, 2227770), (15, 2079252), (18, 1732710), (20, 1559439), (21, 1485180), (27, 1155140), (28, 1113885), (30, 1039626), (35, 891108), (36, 866355), (37, 842940), (42, 742590), (45, 693084), (54, 577570), (60, 519813), (63, 495060), (70, 445554), (74, 421470), (84, 371295), (90, 346542), (105, 297036), (108, 288785), (111, 280980), (126, 247530), (135, 231028), (140, 222777), (148, 210735), (180, 173271), (185, 168588), (189, 165020), (210, 148518), (222, 140490), (223, 139860), (252, 123765), (259, 120420), (270, 115514), (315, 99012), (333, 93660), (370, 84294), (378, 82510), (420, 74259), (444, 70245), (446, 69930), (518, 60210), (540, 57757), (555, 56196), (630, 49506), (666, 46830), (669, 46620), (740, 42147), (756, 41255), (777, 40140), (892, 34965), (945, 33004), (999, 31220), (1036, 30105), (1110, 28098), (1115, 27972), (1260, 24753), (1295, 24084), (1332, 23415), (1338, 23310), (1554, 20070), (1561, 19980), (1665, 18732), (1890, 16502), (1998, 15610), (2007, 15540), (2220, 14049), (2230, 13986), (2331, 13380), (2590, 12042), (2676, 11655), (3108, 10035), (3122, 9990), (3330, 9366), (3345, 9324), (3780, 8251), (3885, 8028), (3996, 7805), (4014, 7770), (4460, 6993), (4662, 6690), (4683, 6660), (4995, 6244), (5180, 6021)]