78812720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:283

約数の個数: 160

約数和(自身を含む): 227128320

約数和(自身を除く): 148315600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 29, 35, 40, 46, 56, 58, 70, 80, 92, 112, 115, 116, 140, 145, 161, 184, 203, 211, 230, 232, 280, 290, 322, 368, 406, 422, 460, 464, 560, 580, 644, 667, 805, 812, 844, 920, 1015, 1055, 1160, 1288, 1334, 1477, 1610, 1624, 1688, 1840, 2030, 2110, 2320, 2576, 2668, 2954, 3220, 3248, 3335, 3376, 4060, 4220, 4669, 4853, 5336, 5908, 6119, 6440, 6670, 7385, 8120, 8440, 9338, 9706, 10672, 11816, 12238, 12880, 13340, 14770, 16240, 16880, 18676, 19412, 23345, 23632, 24265, 24476, 26680, 29540, 30595, 33971, 37352, 38824, 42833, 46690, 48530, 48952, 53360, 59080, 61190, 67942, 74704, 77648, 85666, 93380, 97060, 97904, 118160, 122380, 135884, 140737, 169855, 171332, 186760, 194120, 214165, 244760, 271768, 281474, 339710, 342664, 373520, 388240, 428330, 489520, 543536, 562948, 679420, 685328, 703685, 856660, 985159, 1125896, 1358840, 1407370, 1713320, 1970318, 2251792, 2717680, 2814740, 3426640, 3940636, 4925795, 5629480, 7881272, 9851590, 11258960, 15762544, 19703180, 39406360, 78812720]

約数ペア:

[(1, 78812720), (2, 39406360), (4, 19703180), (5, 15762544), (7, 11258960), (8, 9851590), (10, 7881272), (14, 5629480), (16, 4925795), (20, 3940636), (23, 3426640), (28, 2814740), (29, 2717680), (35, 2251792), (40, 1970318), (46, 1713320), (56, 1407370), (58, 1358840), (70, 1125896), (80, 985159), (92, 856660), (112, 703685), (115, 685328), (116, 679420), (140, 562948), (145, 543536), (161, 489520), (184, 428330), (203, 388240), (211, 373520), (230, 342664), (232, 339710), (280, 281474), (290, 271768), (322, 244760), (368, 214165), (406, 194120), (422, 186760), (460, 171332), (464, 169855), (560, 140737), (580, 135884), (644, 122380), (667, 118160), (805, 97904), (812, 97060), (844, 93380), (920, 85666), (1015, 77648), (1055, 74704), (1160, 67942), (1288, 61190), (1334, 59080), (1477, 53360), (1610, 48952), (1624, 48530), (1688, 46690), (1840, 42833), (2030, 38824), (2110, 37352), (2320, 33971), (2576, 30595), (2668, 29540), (2954, 26680), (3220, 24476), (3248, 24265), (3335, 23632), (3376, 23345), (4060, 19412), (4220, 18676), (4669, 16880), (4853, 16240), (5336, 14770), (5908, 13340), (6119, 12880), (6440, 12238), (6670, 11816), (7385, 10672), (8120, 9706), (8440, 9338)]