78019956

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{641}}^1$

素因数の和:691

約数の個数: 144

約数和(自身を含む): 245911680

約数和(自身を除く): 167891724

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 27, 28, 36, 42, 46, 49, 54, 63, 69, 84, 92, 98, 108, 126, 138, 147, 161, 189, 196, 207, 252, 276, 294, 322, 378, 414, 441, 483, 588, 621, 641, 644, 756, 828, 882, 966, 1127, 1242, 1282, 1323, 1449, 1764, 1923, 1932, 2254, 2484, 2564, 2646, 2898, 3381, 3846, 4347, 4487, 4508, 5292, 5769, 5796, 6762, 7692, 8694, 8974, 10143, 11538, 13461, 13524, 14743, 17307, 17388, 17948, 20286, 23076, 26922, 29486, 30429, 31409, 34614, 40383, 40572, 44229, 53844, 58972, 60858, 62818, 69228, 80766, 88458, 94227, 103201, 121149, 121716, 125636, 132687, 161532, 176916, 188454, 206402, 242298, 265374, 282681, 309603, 376908, 398061, 412804, 484596, 530748, 565362, 619206, 722407, 796122, 848043, 928809, 1130724, 1238412, 1444814, 1592244, 1696086, 1857618, 2167221, 2786427, 2889628, 3392172, 3715236, 4334442, 5572854, 6501663, 8668884, 11145708, 13003326, 19504989, 26006652, 39009978, 78019956]

約数ペア:

[(1, 78019956), (2, 39009978), (3, 26006652), (4, 19504989), (6, 13003326), (7, 11145708), (9, 8668884), (12, 6501663), (14, 5572854), (18, 4334442), (21, 3715236), (23, 3392172), (27, 2889628), (28, 2786427), (36, 2167221), (42, 1857618), (46, 1696086), (49, 1592244), (54, 1444814), (63, 1238412), (69, 1130724), (84, 928809), (92, 848043), (98, 796122), (108, 722407), (126, 619206), (138, 565362), (147, 530748), (161, 484596), (189, 412804), (196, 398061), (207, 376908), (252, 309603), (276, 282681), (294, 265374), (322, 242298), (378, 206402), (414, 188454), (441, 176916), (483, 161532), (588, 132687), (621, 125636), (641, 121716), (644, 121149), (756, 103201), (828, 94227), (882, 88458), (966, 80766), (1127, 69228), (1242, 62818), (1282, 60858), (1323, 58972), (1449, 53844), (1764, 44229), (1923, 40572), (1932, 40383), (2254, 34614), (2484, 31409), (2564, 30429), (2646, 29486), (2898, 26922), (3381, 23076), (3846, 20286), (4347, 17948), (4487, 17388), (4508, 17307), (5292, 14743), (5769, 13524), (5796, 13461), (6762, 11538), (7692, 10143), (8694, 8974)]