78736840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:351

約数の個数: 128

約数和(自身を含む): 221276160

約数和(自身を除く): 142539320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 97, 104, 130, 140, 182, 194, 223, 260, 280, 364, 388, 446, 455, 485, 520, 679, 728, 776, 892, 910, 970, 1115, 1261, 1358, 1561, 1784, 1820, 1940, 2230, 2522, 2716, 2899, 3122, 3395, 3640, 3880, 4460, 5044, 5432, 5798, 6244, 6305, 6790, 7805, 8827, 8920, 10088, 11596, 12488, 12610, 13580, 14495, 15610, 17654, 20293, 21631, 23192, 25220, 27160, 28990, 31220, 35308, 40586, 43262, 44135, 50440, 57980, 62440, 70616, 81172, 86524, 88270, 101465, 108155, 115960, 151417, 162344, 173048, 176540, 202930, 216310, 281203, 302834, 353080, 405860, 432620, 562406, 605668, 757085, 811720, 865240, 1124812, 1211336, 1406015, 1514170, 1968421, 2249624, 2812030, 3028340, 3936842, 5624060, 6056680, 7873684, 9842105, 11248120, 15747368, 19684210, 39368420, 78736840]

約数ペア:

[(1, 78736840), (2, 39368420), (4, 19684210), (5, 15747368), (7, 11248120), (8, 9842105), (10, 7873684), (13, 6056680), (14, 5624060), (20, 3936842), (26, 3028340), (28, 2812030), (35, 2249624), (40, 1968421), (52, 1514170), (56, 1406015), (65, 1211336), (70, 1124812), (91, 865240), (97, 811720), (104, 757085), (130, 605668), (140, 562406), (182, 432620), (194, 405860), (223, 353080), (260, 302834), (280, 281203), (364, 216310), (388, 202930), (446, 176540), (455, 173048), (485, 162344), (520, 151417), (679, 115960), (728, 108155), (776, 101465), (892, 88270), (910, 86524), (970, 81172), (1115, 70616), (1261, 62440), (1358, 57980), (1561, 50440), (1784, 44135), (1820, 43262), (1940, 40586), (2230, 35308), (2522, 31220), (2716, 28990), (2899, 27160), (3122, 25220), (3395, 23192), (3640, 21631), (3880, 20293), (4460, 17654), (5044, 15610), (5432, 14495), (5798, 13580), (6244, 12610), (6305, 12488), (6790, 11596), (7805, 10088), (8827, 8920)]