409968800

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:383

約数の個数: 144

約数和(自身を含む): 1053932544

約数和(自身を除く): 643963744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 61, 62, 80, 100, 122, 124, 155, 160, 200, 244, 248, 271, 305, 310, 400, 488, 496, 542, 610, 620, 775, 800, 976, 992, 1084, 1220, 1240, 1355, 1525, 1550, 1891, 1952, 2168, 2440, 2480, 2710, 3050, 3100, 3782, 4336, 4880, 4960, 5420, 6100, 6200, 6775, 7564, 8401, 8672, 9455, 9760, 10840, 12200, 12400, 13550, 15128, 16531, 16802, 18910, 21680, 24400, 24800, 27100, 30256, 33062, 33604, 37820, 42005, 43360, 47275, 48800, 54200, 60512, 66124, 67208, 75640, 82655, 84010, 94550, 108400, 132248, 134416, 151280, 165310, 168020, 189100, 210025, 216800, 264496, 268832, 302560, 330620, 336040, 378200, 413275, 420050, 512461, 528992, 661240, 672080, 756400, 826550, 840100, 1024922, 1322480, 1344160, 1512800, 1653100, 1680200, 2049844, 2562305, 2644960, 3306200, 3360400, 4099688, 5124610, 6612400, 6720800, 8199376, 10249220, 12811525, 13224800, 16398752, 20498440, 25623050, 40996880, 51246100, 81993760, 102492200, 204984400, 409968800]

約数ペア:

[(1, 409968800), (2, 204984400), (4, 102492200), (5, 81993760), (8, 51246100), (10, 40996880), (16, 25623050), (20, 20498440), (25, 16398752), (31, 13224800), (32, 12811525), (40, 10249220), (50, 8199376), (61, 6720800), (62, 6612400), (80, 5124610), (100, 4099688), (122, 3360400), (124, 3306200), (155, 2644960), (160, 2562305), (200, 2049844), (244, 1680200), (248, 1653100), (271, 1512800), (305, 1344160), (310, 1322480), (400, 1024922), (488, 840100), (496, 826550), (542, 756400), (610, 672080), (620, 661240), (775, 528992), (800, 512461), (976, 420050), (992, 413275), (1084, 378200), (1220, 336040), (1240, 330620), (1355, 302560), (1525, 268832), (1550, 264496), (1891, 216800), (1952, 210025), (2168, 189100), (2440, 168020), (2480, 165310), (2710, 151280), (3050, 134416), (3100, 132248), (3782, 108400), (4336, 94550), (4880, 84010), (4960, 82655), (5420, 75640), (6100, 67208), (6200, 66124), (6775, 60512), (7564, 54200), (8401, 48800), (8672, 47275), (9455, 43360), (9760, 42005), (10840, 37820), (12200, 33604), (12400, 33062), (13550, 30256), (15128, 27100), (16531, 24800), (16802, 24400), (18910, 21680)]