641965440

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1301}}^1$

素因数の和:1580

約数の個数: 128

約数和(自身を含む): 2055805920

約数和(自身を除く): 1413840480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 257, 320, 384, 480, 514, 640, 771, 960, 1028, 1285, 1301, 1542, 1920, 2056, 2570, 2602, 3084, 3855, 3903, 4112, 5140, 5204, 6168, 6505, 7710, 7806, 8224, 10280, 10408, 12336, 13010, 15420, 15612, 16448, 19515, 20560, 20816, 24672, 26020, 30840, 31224, 32896, 39030, 41120, 41632, 49344, 52040, 61680, 62448, 78060, 82240, 83264, 98688, 104080, 123360, 124896, 156120, 164480, 166528, 208160, 246720, 249792, 312240, 334357, 416320, 493440, 499584, 624480, 668714, 832640, 1003071, 1248960, 1337428, 1671785, 2006142, 2497920, 2674856, 3343570, 4012284, 5015355, 5349712, 6687140, 8024568, 10030710, 10699424, 13374280, 16049136, 20061420, 21398848, 26748560, 32098272, 40122840, 42797696, 53497120, 64196544, 80245680, 106994240, 128393088, 160491360, 213988480, 320982720, 641965440]

約数ペア:

[(1, 641965440), (2, 320982720), (3, 213988480), (4, 160491360), (5, 128393088), (6, 106994240), (8, 80245680), (10, 64196544), (12, 53497120), (15, 42797696), (16, 40122840), (20, 32098272), (24, 26748560), (30, 21398848), (32, 20061420), (40, 16049136), (48, 13374280), (60, 10699424), (64, 10030710), (80, 8024568), (96, 6687140), (120, 5349712), (128, 5015355), (160, 4012284), (192, 3343570), (240, 2674856), (257, 2497920), (320, 2006142), (384, 1671785), (480, 1337428), (514, 1248960), (640, 1003071), (771, 832640), (960, 668714), (1028, 624480), (1285, 499584), (1301, 493440), (1542, 416320), (1920, 334357), (2056, 312240), (2570, 249792), (2602, 246720), (3084, 208160), (3855, 166528), (3903, 164480), (4112, 156120), (5140, 124896), (5204, 123360), (6168, 104080), (6505, 98688), (7710, 83264), (7806, 82240), (8224, 78060), (10280, 62448), (10408, 61680), (12336, 52040), (13010, 49344), (15420, 41632), (15612, 41120), (16448, 39030), (19515, 32896), (20560, 31224), (20816, 30840), (24672, 26020)]