81560070

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1$

素因数の和:139

約数の個数: 144

約数和(自身を含む): 234220896

約数和(自身を除く): 152660826

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 31, 41, 45, 46, 62, 69, 82, 90, 93, 115, 123, 138, 155, 186, 205, 207, 230, 246, 279, 310, 345, 369, 410, 414, 465, 558, 615, 690, 713, 738, 930, 943, 961, 1035, 1230, 1271, 1395, 1426, 1845, 1886, 1922, 2070, 2139, 2542, 2790, 2829, 2883, 3565, 3690, 3813, 4278, 4715, 4805, 5658, 5766, 6355, 6417, 7130, 7626, 8487, 8649, 9430, 9610, 10695, 11439, 12710, 12834, 14145, 14415, 16974, 17298, 19065, 21390, 22103, 22878, 28290, 28830, 29233, 32085, 38130, 39401, 42435, 43245, 44206, 57195, 58466, 64170, 66309, 78802, 84870, 86490, 87699, 110515, 114390, 118203, 132618, 146165, 175398, 197005, 198927, 221030, 236406, 263097, 292330, 331545, 354609, 394010, 397854, 438495, 526194, 591015, 663090, 709218, 876990, 906223, 994635, 1182030, 1315485, 1773045, 1812446, 1989270, 2630970, 2718669, 3546090, 4531115, 5437338, 8156007, 9062230, 13593345, 16312014, 27186690, 40780035, 81560070]

約数ペア:

[(1, 81560070), (2, 40780035), (3, 27186690), (5, 16312014), (6, 13593345), (9, 9062230), (10, 8156007), (15, 5437338), (18, 4531115), (23, 3546090), (30, 2718669), (31, 2630970), (41, 1989270), (45, 1812446), (46, 1773045), (62, 1315485), (69, 1182030), (82, 994635), (90, 906223), (93, 876990), (115, 709218), (123, 663090), (138, 591015), (155, 526194), (186, 438495), (205, 397854), (207, 394010), (230, 354609), (246, 331545), (279, 292330), (310, 263097), (345, 236406), (369, 221030), (410, 198927), (414, 197005), (465, 175398), (558, 146165), (615, 132618), (690, 118203), (713, 114390), (738, 110515), (930, 87699), (943, 86490), (961, 84870), (1035, 78802), (1230, 66309), (1271, 64170), (1395, 58466), (1426, 57195), (1845, 44206), (1886, 43245), (1922, 42435), (2070, 39401), (2139, 38130), (2542, 32085), (2790, 29233), (2829, 28830), (2883, 28290), (3565, 22878), (3690, 22103), (3813, 21390), (4278, 19065), (4715, 17298), (4805, 16974), (5658, 14415), (5766, 14145), (6355, 12834), (6417, 12710), (7130, 11439), (7626, 10695), (8487, 9610), (8649, 9430)]