387840640

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{619}}^1$

素因数の和:738

約数の個数: 128

約数和(自身を含む): 1024488000

約数和(自身を除く): 636647360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 89, 110, 128, 160, 176, 178, 220, 320, 352, 356, 440, 445, 619, 640, 704, 712, 880, 890, 979, 1238, 1408, 1424, 1760, 1780, 1958, 2476, 2848, 3095, 3520, 3560, 3916, 4895, 4952, 5696, 6190, 6809, 7040, 7120, 7832, 9790, 9904, 11392, 12380, 13618, 14240, 15664, 19580, 19808, 24760, 27236, 28480, 31328, 34045, 39160, 39616, 49520, 54472, 55091, 56960, 62656, 68090, 78320, 79232, 99040, 108944, 110182, 125312, 136180, 156640, 198080, 217888, 220364, 272360, 275455, 313280, 396160, 435776, 440728, 544720, 550910, 606001, 626560, 871552, 881456, 1089440, 1101820, 1212002, 1762912, 2178880, 2203640, 2424004, 3030005, 3525824, 4357760, 4407280, 4848008, 6060010, 7051648, 8814560, 9696016, 12120020, 17629120, 19392032, 24240040, 35258240, 38784064, 48480080, 77568128, 96960160, 193920320, 387840640]

約数ペア:

[(1, 387840640), (2, 193920320), (4, 96960160), (5, 77568128), (8, 48480080), (10, 38784064), (11, 35258240), (16, 24240040), (20, 19392032), (22, 17629120), (32, 12120020), (40, 9696016), (44, 8814560), (55, 7051648), (64, 6060010), (80, 4848008), (88, 4407280), (89, 4357760), (110, 3525824), (128, 3030005), (160, 2424004), (176, 2203640), (178, 2178880), (220, 1762912), (320, 1212002), (352, 1101820), (356, 1089440), (440, 881456), (445, 871552), (619, 626560), (640, 606001), (704, 550910), (712, 544720), (880, 440728), (890, 435776), (979, 396160), (1238, 313280), (1408, 275455), (1424, 272360), (1760, 220364), (1780, 217888), (1958, 198080), (2476, 156640), (2848, 136180), (3095, 125312), (3520, 110182), (3560, 108944), (3916, 99040), (4895, 79232), (4952, 78320), (5696, 68090), (6190, 62656), (6809, 56960), (7040, 55091), (7120, 54472), (7832, 49520), (9790, 39616), (9904, 39160), (11392, 34045), (12380, 31328), (13618, 28480), (14240, 27236), (15664, 24760), (19580, 19808)]