287997440

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:264

約数の個数: 160

約数和(自身を含む): 754237440

約数和(自身を除く): 466240000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 124, 128, 152, 155, 160, 190, 191, 248, 256, 304, 310, 320, 380, 382, 496, 512, 589, 608, 620, 640, 760, 764, 955, 992, 1178, 1216, 1240, 1280, 1520, 1528, 1910, 1984, 2356, 2432, 2480, 2560, 2945, 3040, 3056, 3629, 3820, 3968, 4712, 4864, 4960, 5890, 5921, 6080, 6112, 7258, 7640, 7936, 9424, 9728, 9920, 11780, 11842, 12160, 12224, 14516, 15280, 15872, 18145, 18848, 19840, 23560, 23684, 24320, 24448, 29032, 29605, 30560, 36290, 37696, 39680, 47120, 47368, 48640, 48896, 58064, 59210, 61120, 72580, 75392, 79360, 94240, 94736, 97792, 112499, 116128, 118420, 122240, 145160, 150784, 188480, 189472, 224998, 232256, 236840, 244480, 290320, 301568, 376960, 378944, 449996, 464512, 473680, 488960, 562495, 580640, 753920, 757888, 899992, 929024, 947360, 1124990, 1161280, 1507840, 1515776, 1799984, 1858048, 1894720, 2249980, 2322560, 3031552, 3599968, 3789440, 4499960, 4645120, 7199936, 7578880, 8999920, 9290240, 14399872, 15157760, 17999840, 28799744, 35999680, 57599488, 71999360, 143998720, 287997440]

約数ペア:

[(1, 287997440), (2, 143998720), (4, 71999360), (5, 57599488), (8, 35999680), (10, 28799744), (16, 17999840), (19, 15157760), (20, 14399872), (31, 9290240), (32, 8999920), (38, 7578880), (40, 7199936), (62, 4645120), (64, 4499960), (76, 3789440), (80, 3599968), (95, 3031552), (124, 2322560), (128, 2249980), (152, 1894720), (155, 1858048), (160, 1799984), (190, 1515776), (191, 1507840), (248, 1161280), (256, 1124990), (304, 947360), (310, 929024), (320, 899992), (380, 757888), (382, 753920), (496, 580640), (512, 562495), (589, 488960), (608, 473680), (620, 464512), (640, 449996), (760, 378944), (764, 376960), (955, 301568), (992, 290320), (1178, 244480), (1216, 236840), (1240, 232256), (1280, 224998), (1520, 189472), (1528, 188480), (1910, 150784), (1984, 145160), (2356, 122240), (2432, 118420), (2480, 116128), (2560, 112499), (2945, 97792), (3040, 94736), (3056, 94240), (3629, 79360), (3820, 75392), (3968, 72580), (4712, 61120), (4864, 59210), (4960, 58064), (5890, 48896), (5921, 48640), (6080, 47368), (6112, 47120), (7258, 39680), (7640, 37696), (7936, 36290), (9424, 30560), (9728, 29605), (9920, 29032), (11780, 24448), (11842, 24320), (12160, 23684), (12224, 23560), (14516, 19840), (15280, 18848), (15872, 18145)]