28841540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:118

約数の個数: 144

約数和(自身を含む): 79688448

約数和(自身を除く): 50846908

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 52, 53, 65, 70, 91, 92, 106, 115, 130, 140, 161, 169, 182, 212, 230, 260, 265, 299, 322, 338, 364, 371, 455, 460, 530, 598, 644, 676, 689, 742, 805, 845, 910, 1060, 1183, 1196, 1219, 1378, 1484, 1495, 1610, 1690, 1820, 1855, 2093, 2366, 2438, 2756, 2990, 3220, 3380, 3445, 3710, 3887, 4186, 4732, 4823, 4876, 5915, 5980, 6095, 6890, 7420, 7774, 8372, 8533, 8957, 9646, 10465, 11830, 12190, 13780, 15548, 15847, 17066, 17914, 19292, 19435, 20930, 23660, 24115, 24380, 27209, 31694, 34132, 35828, 38870, 41860, 42665, 44785, 48230, 54418, 62699, 63388, 77740, 79235, 85330, 89570, 96460, 108836, 110929, 125398, 136045, 158470, 170660, 179140, 206011, 221858, 250796, 272090, 313495, 316940, 412022, 443716, 544180, 554645, 626990, 824044, 1030055, 1109290, 1253980, 1442077, 2060110, 2218580, 2884154, 4120220, 5768308, 7210385, 14420770, 28841540]

約数ペア:

[(1, 28841540), (2, 14420770), (4, 7210385), (5, 5768308), (7, 4120220), (10, 2884154), (13, 2218580), (14, 2060110), (20, 1442077), (23, 1253980), (26, 1109290), (28, 1030055), (35, 824044), (46, 626990), (52, 554645), (53, 544180), (65, 443716), (70, 412022), (91, 316940), (92, 313495), (106, 272090), (115, 250796), (130, 221858), (140, 206011), (161, 179140), (169, 170660), (182, 158470), (212, 136045), (230, 125398), (260, 110929), (265, 108836), (299, 96460), (322, 89570), (338, 85330), (364, 79235), (371, 77740), (455, 63388), (460, 62699), (530, 54418), (598, 48230), (644, 44785), (676, 42665), (689, 41860), (742, 38870), (805, 35828), (845, 34132), (910, 31694), (1060, 27209), (1183, 24380), (1196, 24115), (1219, 23660), (1378, 20930), (1484, 19435), (1495, 19292), (1610, 17914), (1690, 17066), (1820, 15847), (1855, 15548), (2093, 13780), (2366, 12190), (2438, 11830), (2756, 10465), (2990, 9646), (3220, 8957), (3380, 8533), (3445, 8372), (3710, 7774), (3887, 7420), (4186, 6890), (4732, 6095), (4823, 5980), (4876, 5915)]