216987680

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2129}}^1$

素因数の和:2171

約数の個数: 144

約数和(自身を含む): 642501720

約数和(自身を除く): 425514040

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 364, 392, 416, 455, 490, 520, 560, 637, 728, 784, 910, 980, 1040, 1120, 1274, 1456, 1568, 1820, 1960, 2080, 2129, 2548, 2912, 3185, 3640, 3920, 4258, 5096, 6370, 7280, 7840, 8516, 10192, 10645, 12740, 14560, 14903, 17032, 20384, 21290, 25480, 27677, 29806, 34064, 42580, 50960, 55354, 59612, 68128, 74515, 85160, 101920, 104321, 110708, 119224, 138385, 149030, 170320, 193739, 208642, 221416, 238448, 276770, 298060, 340640, 387478, 417284, 442832, 476896, 521605, 553540, 596120, 774956, 834568, 885664, 968695, 1043210, 1107080, 1192240, 1356173, 1549912, 1669136, 1937390, 2086420, 2214160, 2384480, 2712346, 3099824, 3338272, 3874780, 4172840, 4428320, 5424692, 6199648, 6780865, 7749560, 8345680, 10849384, 13561730, 15499120, 16691360, 21698768, 27123460, 30998240, 43397536, 54246920, 108493840, 216987680]

約数ペア:

[(1, 216987680), (2, 108493840), (4, 54246920), (5, 43397536), (7, 30998240), (8, 27123460), (10, 21698768), (13, 16691360), (14, 15499120), (16, 13561730), (20, 10849384), (26, 8345680), (28, 7749560), (32, 6780865), (35, 6199648), (40, 5424692), (49, 4428320), (52, 4172840), (56, 3874780), (65, 3338272), (70, 3099824), (80, 2712346), (91, 2384480), (98, 2214160), (104, 2086420), (112, 1937390), (130, 1669136), (140, 1549912), (160, 1356173), (182, 1192240), (196, 1107080), (208, 1043210), (224, 968695), (245, 885664), (260, 834568), (280, 774956), (364, 596120), (392, 553540), (416, 521605), (455, 476896), (490, 442832), (520, 417284), (560, 387478), (637, 340640), (728, 298060), (784, 276770), (910, 238448), (980, 221416), (1040, 208642), (1120, 193739), (1274, 170320), (1456, 149030), (1568, 138385), (1820, 119224), (1960, 110708), (2080, 104321), (2129, 101920), (2548, 85160), (2912, 74515), (3185, 68128), (3640, 59612), (3920, 55354), (4258, 50960), (5096, 42580), (6370, 34064), (7280, 29806), (7840, 27677), (8516, 25480), (10192, 21290), (10645, 20384), (12740, 17032), (14560, 14903)]