212995890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:497

約数の個数: 144

約数和(自身を含む): 620680320

約数和(自身を除く): 407684430

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 19, 30, 34, 38, 45, 51, 57, 85, 90, 95, 102, 114, 153, 170, 171, 190, 255, 285, 289, 306, 323, 342, 431, 510, 570, 578, 646, 765, 855, 862, 867, 969, 1293, 1445, 1530, 1615, 1710, 1734, 1938, 2155, 2586, 2601, 2890, 2907, 3230, 3879, 4310, 4335, 4845, 5202, 5491, 5814, 6465, 7327, 7758, 8189, 8670, 9690, 10982, 12930, 13005, 14535, 14654, 16378, 16473, 19395, 21981, 24567, 26010, 27455, 29070, 32946, 36635, 38790, 40945, 43962, 49134, 49419, 54910, 65943, 73270, 73701, 81890, 82365, 98838, 109905, 122835, 124559, 131886, 139213, 147402, 164730, 219810, 245670, 247095, 249118, 278426, 329715, 368505, 373677, 417639, 494190, 622795, 659430, 696065, 737010, 747354, 835278, 1121031, 1245590, 1252917, 1392130, 1868385, 2088195, 2242062, 2366621, 2505834, 3736770, 4176390, 4733242, 5605155, 6264585, 7099863, 11210310, 11833105, 12529170, 14199726, 21299589, 23666210, 35499315, 42599178, 70998630, 106497945, 212995890]

約数ペア:

[(1, 212995890), (2, 106497945), (3, 70998630), (5, 42599178), (6, 35499315), (9, 23666210), (10, 21299589), (15, 14199726), (17, 12529170), (18, 11833105), (19, 11210310), (30, 7099863), (34, 6264585), (38, 5605155), (45, 4733242), (51, 4176390), (57, 3736770), (85, 2505834), (90, 2366621), (95, 2242062), (102, 2088195), (114, 1868385), (153, 1392130), (170, 1252917), (171, 1245590), (190, 1121031), (255, 835278), (285, 747354), (289, 737010), (306, 696065), (323, 659430), (342, 622795), (431, 494190), (510, 417639), (570, 373677), (578, 368505), (646, 329715), (765, 278426), (855, 249118), (862, 247095), (867, 245670), (969, 219810), (1293, 164730), (1445, 147402), (1530, 139213), (1615, 131886), (1710, 124559), (1734, 122835), (1938, 109905), (2155, 98838), (2586, 82365), (2601, 81890), (2890, 73701), (2907, 73270), (3230, 65943), (3879, 54910), (4310, 49419), (4335, 49134), (4845, 43962), (5202, 40945), (5491, 38790), (5814, 36635), (6465, 32946), (7327, 29070), (7758, 27455), (8189, 26010), (8670, 24567), (9690, 21981), (10982, 19395), (12930, 16473), (13005, 16378), (14535, 14654)]