720456880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{887}}^1$

素因数の和:995

約数の個数: 160

約数和(自身を含む): 1997872128

約数和(自身を除く): 1277415248

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 71, 80, 88, 104, 110, 130, 142, 143, 176, 208, 220, 260, 284, 286, 355, 440, 520, 568, 572, 710, 715, 781, 880, 887, 923, 1040, 1136, 1144, 1420, 1430, 1562, 1774, 1846, 2288, 2840, 2860, 3124, 3548, 3692, 3905, 4435, 4615, 5680, 5720, 6248, 7096, 7384, 7810, 8870, 9230, 9757, 10153, 11440, 11531, 12496, 14192, 14768, 15620, 17740, 18460, 19514, 20306, 23062, 31240, 35480, 36920, 39028, 40612, 46124, 48785, 50765, 57655, 62480, 62977, 70960, 73840, 78056, 81224, 92248, 97570, 101530, 115310, 125954, 126841, 156112, 162448, 184496, 195140, 203060, 230620, 251908, 253682, 314885, 390280, 406120, 461240, 503816, 507364, 629770, 634205, 692747, 780560, 812240, 818701, 922480, 1007632, 1014728, 1259540, 1268410, 1385494, 1637402, 2029456, 2519080, 2536820, 2770988, 3274804, 3463735, 4093505, 5038160, 5073640, 5541976, 6549608, 6927470, 8187010, 9005711, 10147280, 11083952, 13099216, 13854940, 16374020, 18011422, 27709880, 32748040, 36022844, 45028555, 55419760, 65496080, 72045688, 90057110, 144091376, 180114220, 360228440, 720456880]

約数ペア:

[(1, 720456880), (2, 360228440), (4, 180114220), (5, 144091376), (8, 90057110), (10, 72045688), (11, 65496080), (13, 55419760), (16, 45028555), (20, 36022844), (22, 32748040), (26, 27709880), (40, 18011422), (44, 16374020), (52, 13854940), (55, 13099216), (65, 11083952), (71, 10147280), (80, 9005711), (88, 8187010), (104, 6927470), (110, 6549608), (130, 5541976), (142, 5073640), (143, 5038160), (176, 4093505), (208, 3463735), (220, 3274804), (260, 2770988), (284, 2536820), (286, 2519080), (355, 2029456), (440, 1637402), (520, 1385494), (568, 1268410), (572, 1259540), (710, 1014728), (715, 1007632), (781, 922480), (880, 818701), (887, 812240), (923, 780560), (1040, 692747), (1136, 634205), (1144, 629770), (1420, 507364), (1430, 503816), (1562, 461240), (1774, 406120), (1846, 390280), (2288, 314885), (2840, 253682), (2860, 251908), (3124, 230620), (3548, 203060), (3692, 195140), (3905, 184496), (4435, 162448), (4615, 156112), (5680, 126841), (5720, 125954), (6248, 115310), (7096, 101530), (7384, 97570), (7810, 92248), (8870, 81224), (9230, 78056), (9757, 73840), (10153, 70960), (11440, 62977), (11531, 62480), (12496, 57655), (14192, 50765), (14768, 48785), (15620, 46124), (17740, 40612), (18460, 39028), (19514, 36920), (20306, 35480), (23062, 31240)]