391894360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{523}}^1$

素因数の和:689

約数の個数: 128

約数和(自身を含む): 1045820160

約数和(自身を除く): 653925800

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 131, 143, 220, 260, 262, 286, 440, 520, 523, 524, 572, 655, 715, 1046, 1048, 1144, 1310, 1430, 1441, 1703, 2092, 2615, 2620, 2860, 2882, 3406, 4184, 5230, 5240, 5720, 5753, 5764, 6799, 6812, 7205, 8515, 10460, 11506, 11528, 13598, 13624, 14410, 17030, 18733, 20920, 23012, 27196, 28765, 28820, 33995, 34060, 37466, 46024, 54392, 57530, 57640, 67990, 68120, 68513, 74789, 74932, 93665, 115060, 135980, 137026, 149578, 149864, 187330, 230120, 271960, 274052, 299156, 342565, 373945, 374660, 548104, 598312, 685130, 747890, 749320, 753643, 890669, 1370260, 1495780, 1507286, 1781338, 2740520, 2991560, 3014572, 3562676, 3768215, 4453345, 6029144, 7125352, 7536430, 8906690, 9797359, 15072860, 17813380, 19594718, 30145720, 35626760, 39189436, 48986795, 78378872, 97973590, 195947180, 391894360]

約数ペア:

[(1, 391894360), (2, 195947180), (4, 97973590), (5, 78378872), (8, 48986795), (10, 39189436), (11, 35626760), (13, 30145720), (20, 19594718), (22, 17813380), (26, 15072860), (40, 9797359), (44, 8906690), (52, 7536430), (55, 7125352), (65, 6029144), (88, 4453345), (104, 3768215), (110, 3562676), (130, 3014572), (131, 2991560), (143, 2740520), (220, 1781338), (260, 1507286), (262, 1495780), (286, 1370260), (440, 890669), (520, 753643), (523, 749320), (524, 747890), (572, 685130), (655, 598312), (715, 548104), (1046, 374660), (1048, 373945), (1144, 342565), (1310, 299156), (1430, 274052), (1441, 271960), (1703, 230120), (2092, 187330), (2615, 149864), (2620, 149578), (2860, 137026), (2882, 135980), (3406, 115060), (4184, 93665), (5230, 74932), (5240, 74789), (5720, 68513), (5753, 68120), (5764, 67990), (6799, 57640), (6812, 57530), (7205, 54392), (8515, 46024), (10460, 37466), (11506, 34060), (11528, 33995), (13598, 28820), (13624, 28765), (14410, 27196), (17030, 23012), (18733, 20920)]