78621480

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{4457}}^1$

素因数の和:4488

約数の個数: 144

約数和(自身を含む): 297304020

約数和(自身を除く): 218682540

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 140, 147, 168, 180, 196, 210, 245, 252, 280, 294, 315, 360, 392, 420, 441, 490, 504, 588, 630, 735, 840, 882, 980, 1176, 1260, 1470, 1764, 1960, 2205, 2520, 2940, 3528, 4410, 4457, 5880, 8820, 8914, 13371, 17640, 17828, 22285, 26742, 31199, 35656, 40113, 44570, 53484, 62398, 66855, 80226, 89140, 93597, 106968, 124796, 133710, 155995, 160452, 178280, 187194, 200565, 218393, 249592, 267420, 280791, 311990, 320904, 374388, 401130, 436786, 467985, 534840, 561582, 623980, 655179, 748776, 802260, 873572, 935970, 1091965, 1123164, 1247960, 1310358, 1403955, 1604520, 1747144, 1871940, 1965537, 2183930, 2246328, 2620716, 2807910, 3275895, 3743880, 3931074, 4367860, 5241432, 5615820, 6551790, 7862148, 8735720, 9827685, 11231640, 13103580, 15724296, 19655370, 26207160, 39310740, 78621480]

約数ペア:

[(1, 78621480), (2, 39310740), (3, 26207160), (4, 19655370), (5, 15724296), (6, 13103580), (7, 11231640), (8, 9827685), (9, 8735720), (10, 7862148), (12, 6551790), (14, 5615820), (15, 5241432), (18, 4367860), (20, 3931074), (21, 3743880), (24, 3275895), (28, 2807910), (30, 2620716), (35, 2246328), (36, 2183930), (40, 1965537), (42, 1871940), (45, 1747144), (49, 1604520), (56, 1403955), (60, 1310358), (63, 1247960), (70, 1123164), (72, 1091965), (84, 935970), (90, 873572), (98, 802260), (105, 748776), (120, 655179), (126, 623980), (140, 561582), (147, 534840), (168, 467985), (180, 436786), (196, 401130), (210, 374388), (245, 320904), (252, 311990), (280, 280791), (294, 267420), (315, 249592), (360, 218393), (392, 200565), (420, 187194), (441, 178280), (490, 160452), (504, 155995), (588, 133710), (630, 124796), (735, 106968), (840, 93597), (882, 89140), (980, 80226), (1176, 66855), (1260, 62398), (1470, 53484), (1764, 44570), (1960, 40113), (2205, 35656), (2520, 31199), (2940, 26742), (3528, 22285), (4410, 17828), (4457, 17640), (5880, 13371), (8820, 8914)]