31881240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:174

約数の個数: 192

約数和(自身を含む): 112320000

約数和(自身を除く): 80438760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 59, 60, 72, 76, 79, 90, 95, 114, 118, 120, 152, 158, 171, 177, 180, 190, 228, 236, 237, 285, 295, 316, 342, 354, 360, 380, 395, 456, 472, 474, 531, 570, 590, 632, 684, 708, 711, 760, 790, 855, 885, 948, 1062, 1121, 1140, 1180, 1185, 1368, 1416, 1422, 1501, 1580, 1710, 1770, 1896, 2124, 2242, 2280, 2360, 2370, 2655, 2844, 3002, 3160, 3363, 3420, 3540, 3555, 4248, 4484, 4503, 4661, 4740, 5310, 5605, 5688, 6004, 6726, 6840, 7080, 7110, 7505, 8968, 9006, 9322, 9480, 10089, 10620, 11210, 12008, 13452, 13509, 13983, 14220, 15010, 16815, 18012, 18644, 20178, 21240, 22420, 22515, 23305, 26904, 27018, 27966, 28440, 30020, 33630, 36024, 37288, 40356, 41949, 44840, 45030, 46610, 50445, 54036, 55932, 60040, 67260, 67545, 69915, 80712, 83898, 88559, 90060, 93220, 100890, 108072, 111864, 134520, 135090, 139830, 167796, 177118, 180120, 186440, 201780, 209745, 265677, 270180, 279660, 335592, 354236, 403560, 419490, 442795, 531354, 540360, 559320, 708472, 797031, 838980, 885590, 1062708, 1328385, 1594062, 1677960, 1771180, 2125416, 2656770, 3188124, 3542360, 3985155, 5313540, 6376248, 7970310, 10627080, 15940620, 31881240]

約数ペア:

[(1, 31881240), (2, 15940620), (3, 10627080), (4, 7970310), (5, 6376248), (6, 5313540), (8, 3985155), (9, 3542360), (10, 3188124), (12, 2656770), (15, 2125416), (18, 1771180), (19, 1677960), (20, 1594062), (24, 1328385), (30, 1062708), (36, 885590), (38, 838980), (40, 797031), (45, 708472), (57, 559320), (59, 540360), (60, 531354), (72, 442795), (76, 419490), (79, 403560), (90, 354236), (95, 335592), (114, 279660), (118, 270180), (120, 265677), (152, 209745), (158, 201780), (171, 186440), (177, 180120), (180, 177118), (190, 167796), (228, 139830), (236, 135090), (237, 134520), (285, 111864), (295, 108072), (316, 100890), (342, 93220), (354, 90060), (360, 88559), (380, 83898), (395, 80712), (456, 69915), (472, 67545), (474, 67260), (531, 60040), (570, 55932), (590, 54036), (632, 50445), (684, 46610), (708, 45030), (711, 44840), (760, 41949), (790, 40356), (855, 37288), (885, 36024), (948, 33630), (1062, 30020), (1121, 28440), (1140, 27966), (1180, 27018), (1185, 26904), (1368, 23305), (1416, 22515), (1422, 22420), (1501, 21240), (1580, 20178), (1710, 18644), (1770, 18012), (1896, 16815), (2124, 15010), (2242, 14220), (2280, 13983), (2360, 13509), (2370, 13452), (2655, 12008), (2844, 11210), (3002, 10620), (3160, 10089), (3363, 9480), (3420, 9322), (3540, 9006), (3555, 8968), (4248, 7505), (4484, 7110), (4503, 7080), (4661, 6840), (4740, 6726), (5310, 6004), (5605, 5688)]