56280280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:257

約数の個数: 128

約数和(自身を含む): 155520000

約数和(自身を除く): 99239720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 71, 76, 95, 133, 140, 142, 149, 152, 190, 266, 280, 284, 298, 355, 380, 497, 532, 568, 596, 665, 710, 745, 760, 994, 1043, 1064, 1192, 1330, 1349, 1420, 1490, 1988, 2086, 2485, 2660, 2698, 2831, 2840, 2980, 3976, 4172, 4970, 5215, 5320, 5396, 5662, 5960, 6745, 8344, 9443, 9940, 10430, 10579, 10792, 11324, 13490, 14155, 18886, 19817, 19880, 20860, 21158, 22648, 26980, 28310, 37772, 39634, 41720, 42316, 47215, 52895, 53960, 56620, 74053, 75544, 79268, 84632, 94430, 99085, 105790, 113240, 148106, 158536, 188860, 198170, 201001, 211580, 296212, 370265, 377720, 396340, 402002, 423160, 592424, 740530, 792680, 804004, 1005005, 1407007, 1481060, 1608008, 2010010, 2814014, 2962120, 4020020, 5628028, 7035035, 8040040, 11256056, 14070070, 28140140, 56280280]

約数ペア:

[(1, 56280280), (2, 28140140), (4, 14070070), (5, 11256056), (7, 8040040), (8, 7035035), (10, 5628028), (14, 4020020), (19, 2962120), (20, 2814014), (28, 2010010), (35, 1608008), (38, 1481060), (40, 1407007), (56, 1005005), (70, 804004), (71, 792680), (76, 740530), (95, 592424), (133, 423160), (140, 402002), (142, 396340), (149, 377720), (152, 370265), (190, 296212), (266, 211580), (280, 201001), (284, 198170), (298, 188860), (355, 158536), (380, 148106), (497, 113240), (532, 105790), (568, 99085), (596, 94430), (665, 84632), (710, 79268), (745, 75544), (760, 74053), (994, 56620), (1043, 53960), (1064, 52895), (1192, 47215), (1330, 42316), (1349, 41720), (1420, 39634), (1490, 37772), (1988, 28310), (2086, 26980), (2485, 22648), (2660, 21158), (2698, 20860), (2831, 19880), (2840, 19817), (2980, 18886), (3976, 14155), (4172, 13490), (4970, 11324), (5215, 10792), (5320, 10579), (5396, 10430), (5662, 9940), (5960, 9443), (6745, 8344)]