128356020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2887}}^1$

素因数の和:2934

約数の個数: 144

約数和(自身を含む): 441517440

約数和(自身を除く): 313161420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 38, 39, 45, 52, 57, 60, 65, 76, 78, 90, 95, 114, 117, 130, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 342, 380, 390, 468, 494, 570, 585, 684, 741, 780, 855, 988, 1140, 1170, 1235, 1482, 1710, 2223, 2340, 2470, 2887, 2964, 3420, 3705, 4446, 4940, 5774, 7410, 8661, 8892, 11115, 11548, 14435, 14820, 17322, 22230, 25983, 28870, 34644, 37531, 43305, 44460, 51966, 54853, 57740, 75062, 86610, 103932, 109706, 112593, 129915, 150124, 164559, 173220, 187655, 219412, 225186, 259830, 274265, 329118, 337779, 375310, 450372, 493677, 519660, 548530, 562965, 658236, 675558, 713089, 750620, 822795, 987354, 1097060, 1125930, 1351116, 1426178, 1645590, 1688895, 1974708, 2139267, 2251860, 2468385, 2852356, 3291180, 3377790, 3565445, 4278534, 4936770, 6417801, 6755580, 7130890, 8557068, 9873540, 10696335, 12835602, 14261780, 21392670, 25671204, 32089005, 42785340, 64178010, 128356020]

約数ペア:

[(1, 128356020), (2, 64178010), (3, 42785340), (4, 32089005), (5, 25671204), (6, 21392670), (9, 14261780), (10, 12835602), (12, 10696335), (13, 9873540), (15, 8557068), (18, 7130890), (19, 6755580), (20, 6417801), (26, 4936770), (30, 4278534), (36, 3565445), (38, 3377790), (39, 3291180), (45, 2852356), (52, 2468385), (57, 2251860), (60, 2139267), (65, 1974708), (76, 1688895), (78, 1645590), (90, 1426178), (95, 1351116), (114, 1125930), (117, 1097060), (130, 987354), (156, 822795), (171, 750620), (180, 713089), (190, 675558), (195, 658236), (228, 562965), (234, 548530), (247, 519660), (260, 493677), (285, 450372), (342, 375310), (380, 337779), (390, 329118), (468, 274265), (494, 259830), (570, 225186), (585, 219412), (684, 187655), (741, 173220), (780, 164559), (855, 150124), (988, 129915), (1140, 112593), (1170, 109706), (1235, 103932), (1482, 86610), (1710, 75062), (2223, 57740), (2340, 54853), (2470, 51966), (2887, 44460), (2964, 43305), (3420, 37531), (3705, 34644), (4446, 28870), (4940, 25983), (5774, 22230), (7410, 17322), (8661, 14820), (8892, 14435), (11115, 11548)]