642022400

素因数分解:

$2^{10}\times 5^2\times {\mathrm{31}}^1\times {\mathrm{809}}^1$

素因数の和:870

約数の個数: 132

約数和(自身を含む): 1644805440

約数和(自身を除く): 1002783040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 200, 248, 256, 310, 320, 400, 496, 512, 620, 640, 775, 800, 809, 992, 1024, 1240, 1280, 1550, 1600, 1618, 1984, 2480, 2560, 3100, 3200, 3236, 3968, 4045, 4960, 5120, 6200, 6400, 6472, 7936, 8090, 9920, 12400, 12800, 12944, 15872, 16180, 19840, 20225, 24800, 25079, 25600, 25888, 31744, 32360, 39680, 40450, 49600, 50158, 51776, 64720, 79360, 80900, 99200, 100316, 103552, 125395, 129440, 158720, 161800, 198400, 200632, 207104, 250790, 258880, 323600, 396800, 401264, 414208, 501580, 517760, 626975, 647200, 793600, 802528, 828416, 1003160, 1035520, 1253950, 1294400, 1605056, 2006320, 2071040, 2507900, 2588800, 3210112, 4012640, 4142080, 5015800, 5177600, 6420224, 8025280, 10031600, 10355200, 12840448, 16050560, 20063200, 20710400, 25680896, 32101120, 40126400, 64202240, 80252800, 128404480, 160505600, 321011200, 642022400]

約数ペア:

[(1, 642022400), (2, 321011200), (4, 160505600), (5, 128404480), (8, 80252800), (10, 64202240), (16, 40126400), (20, 32101120), (25, 25680896), (31, 20710400), (32, 20063200), (40, 16050560), (50, 12840448), (62, 10355200), (64, 10031600), (80, 8025280), (100, 6420224), (124, 5177600), (128, 5015800), (155, 4142080), (160, 4012640), (200, 3210112), (248, 2588800), (256, 2507900), (310, 2071040), (320, 2006320), (400, 1605056), (496, 1294400), (512, 1253950), (620, 1035520), (640, 1003160), (775, 828416), (800, 802528), (809, 793600), (992, 647200), (1024, 626975), (1240, 517760), (1280, 501580), (1550, 414208), (1600, 401264), (1618, 396800), (1984, 323600), (2480, 258880), (2560, 250790), (3100, 207104), (3200, 200632), (3236, 198400), (3968, 161800), (4045, 158720), (4960, 129440), (5120, 125395), (6200, 103552), (6400, 100316), (6472, 99200), (7936, 80900), (8090, 79360), (9920, 64720), (12400, 51776), (12800, 50158), (12944, 49600), (15872, 40450), (16180, 39680), (19840, 32360), (20225, 31744), (24800, 25888), (25079, 25600)]