401875460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{191}}^1$

素因数の和:346

約数の個数: 144

約数和(自身を含む): 1047997440

約数和(自身を除く): 646121980

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 113, 133, 140, 190, 191, 196, 226, 245, 266, 380, 382, 452, 490, 532, 565, 665, 764, 791, 931, 955, 980, 1130, 1330, 1337, 1582, 1862, 1910, 2147, 2260, 2660, 2674, 3164, 3629, 3724, 3820, 3955, 4294, 4655, 5348, 5537, 6685, 7258, 7910, 8588, 9310, 9359, 10735, 11074, 13370, 14516, 15029, 15820, 18145, 18620, 18718, 21470, 21583, 22148, 25403, 26740, 27685, 30058, 36290, 37436, 42940, 43166, 46795, 50806, 55370, 60116, 72580, 75145, 86332, 93590, 101612, 105203, 107915, 110740, 127015, 150290, 151081, 177821, 187180, 210406, 215830, 254030, 300580, 302162, 355642, 410077, 420812, 431660, 508060, 526015, 604324, 711284, 755405, 820154, 889105, 1052030, 1057567, 1510810, 1640308, 1778210, 2050385, 2104060, 2115134, 2870539, 3021620, 3556420, 4100770, 4230268, 5287835, 5741078, 8201540, 10575670, 11482156, 14352695, 20093773, 21151340, 28705390, 40187546, 57410780, 80375092, 100468865, 200937730, 401875460]

約数ペア:

[(1, 401875460), (2, 200937730), (4, 100468865), (5, 80375092), (7, 57410780), (10, 40187546), (14, 28705390), (19, 21151340), (20, 20093773), (28, 14352695), (35, 11482156), (38, 10575670), (49, 8201540), (70, 5741078), (76, 5287835), (95, 4230268), (98, 4100770), (113, 3556420), (133, 3021620), (140, 2870539), (190, 2115134), (191, 2104060), (196, 2050385), (226, 1778210), (245, 1640308), (266, 1510810), (380, 1057567), (382, 1052030), (452, 889105), (490, 820154), (532, 755405), (565, 711284), (665, 604324), (764, 526015), (791, 508060), (931, 431660), (955, 420812), (980, 410077), (1130, 355642), (1330, 302162), (1337, 300580), (1582, 254030), (1862, 215830), (1910, 210406), (2147, 187180), (2260, 177821), (2660, 151081), (2674, 150290), (3164, 127015), (3629, 110740), (3724, 107915), (3820, 105203), (3955, 101612), (4294, 93590), (4655, 86332), (5348, 75145), (5537, 72580), (6685, 60116), (7258, 55370), (7910, 50806), (8588, 46795), (9310, 43166), (9359, 42940), (10735, 37436), (11074, 36290), (13370, 30058), (14516, 27685), (15029, 26740), (15820, 25403), (18145, 22148), (18620, 21583), (18718, 21470)]