85871240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{761}}^1$

素因数の和:823

約数の個数: 128

約数和(自身を含む): 245790720

約数和(自身を除く): 159919480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 91, 104, 124, 130, 140, 155, 182, 217, 248, 260, 280, 310, 364, 403, 434, 455, 520, 620, 728, 761, 806, 868, 910, 1085, 1240, 1522, 1612, 1736, 1820, 2015, 2170, 2821, 3044, 3224, 3640, 3805, 4030, 4340, 5327, 5642, 6088, 7610, 8060, 8680, 9893, 10654, 11284, 14105, 15220, 16120, 19786, 21308, 22568, 23591, 26635, 28210, 30440, 39572, 42616, 47182, 49465, 53270, 56420, 69251, 79144, 94364, 98930, 106540, 112840, 117955, 138502, 165137, 188728, 197860, 213080, 235910, 277004, 306683, 330274, 346255, 395720, 471820, 554008, 613366, 660548, 692510, 825685, 943640, 1226732, 1321096, 1385020, 1533415, 1651370, 2146781, 2453464, 2770040, 3066830, 3302740, 4293562, 6133660, 6605480, 8587124, 10733905, 12267320, 17174248, 21467810, 42935620, 85871240]

約数ペア:

[(1, 85871240), (2, 42935620), (4, 21467810), (5, 17174248), (7, 12267320), (8, 10733905), (10, 8587124), (13, 6605480), (14, 6133660), (20, 4293562), (26, 3302740), (28, 3066830), (31, 2770040), (35, 2453464), (40, 2146781), (52, 1651370), (56, 1533415), (62, 1385020), (65, 1321096), (70, 1226732), (91, 943640), (104, 825685), (124, 692510), (130, 660548), (140, 613366), (155, 554008), (182, 471820), (217, 395720), (248, 346255), (260, 330274), (280, 306683), (310, 277004), (364, 235910), (403, 213080), (434, 197860), (455, 188728), (520, 165137), (620, 138502), (728, 117955), (761, 112840), (806, 106540), (868, 98930), (910, 94364), (1085, 79144), (1240, 69251), (1522, 56420), (1612, 53270), (1736, 49465), (1820, 47182), (2015, 42616), (2170, 39572), (2821, 30440), (3044, 28210), (3224, 26635), (3640, 23591), (3805, 22568), (4030, 21308), (4340, 19786), (5327, 16120), (5642, 15220), (6088, 14105), (7610, 11284), (8060, 10654), (8680, 9893)]