278270720

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2389}}^1$

素因数の和:2430

約数の個数: 144

約数和(自身を含む): 820706880

約数和(自身を除く): 542436160

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 256, 260, 280, 320, 364, 416, 448, 455, 520, 560, 640, 728, 832, 896, 910, 1040, 1120, 1280, 1456, 1664, 1792, 1820, 2080, 2240, 2389, 2912, 3328, 3640, 4160, 4480, 4778, 5824, 7280, 8320, 8960, 9556, 11648, 11945, 14560, 16640, 16723, 19112, 23296, 23890, 29120, 31057, 33446, 38224, 47780, 58240, 62114, 66892, 76448, 83615, 95560, 116480, 124228, 133784, 152896, 155285, 167230, 191120, 217399, 248456, 267568, 305792, 310570, 334460, 382240, 434798, 496912, 535136, 611584, 621140, 668920, 764480, 869596, 993824, 1070272, 1086995, 1242280, 1337840, 1528960, 1739192, 1987648, 2140544, 2173990, 2484560, 2675680, 3057920, 3478384, 3975296, 4281088, 4347980, 4969120, 5351360, 6956768, 7950592, 8695960, 9938240, 10702720, 13913536, 17391920, 19876480, 21405440, 27827072, 34783840, 39752960, 55654144, 69567680, 139135360, 278270720]

約数ペア:

[(1, 278270720), (2, 139135360), (4, 69567680), (5, 55654144), (7, 39752960), (8, 34783840), (10, 27827072), (13, 21405440), (14, 19876480), (16, 17391920), (20, 13913536), (26, 10702720), (28, 9938240), (32, 8695960), (35, 7950592), (40, 6956768), (52, 5351360), (56, 4969120), (64, 4347980), (65, 4281088), (70, 3975296), (80, 3478384), (91, 3057920), (104, 2675680), (112, 2484560), (128, 2173990), (130, 2140544), (140, 1987648), (160, 1739192), (182, 1528960), (208, 1337840), (224, 1242280), (256, 1086995), (260, 1070272), (280, 993824), (320, 869596), (364, 764480), (416, 668920), (448, 621140), (455, 611584), (520, 535136), (560, 496912), (640, 434798), (728, 382240), (832, 334460), (896, 310570), (910, 305792), (1040, 267568), (1120, 248456), (1280, 217399), (1456, 191120), (1664, 167230), (1792, 155285), (1820, 152896), (2080, 133784), (2240, 124228), (2389, 116480), (2912, 95560), (3328, 83615), (3640, 76448), (4160, 66892), (4480, 62114), (4778, 58240), (5824, 47780), (7280, 38224), (8320, 33446), (8960, 31057), (9556, 29120), (11648, 23890), (11945, 23296), (14560, 19112), (16640, 16723)]