40638720

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1$

素因数の和:600

約数の個数: 144

約数和(自身を含む): 136866240

約数和(自身を除く): 96227520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 64, 76, 80, 95, 96, 114, 120, 128, 152, 160, 190, 192, 228, 240, 256, 285, 304, 320, 380, 384, 456, 480, 557, 570, 608, 640, 760, 768, 912, 960, 1114, 1140, 1216, 1280, 1520, 1671, 1824, 1920, 2228, 2280, 2432, 2785, 3040, 3342, 3648, 3840, 4456, 4560, 4864, 5570, 6080, 6684, 7296, 8355, 8912, 9120, 10583, 11140, 12160, 13368, 14592, 16710, 17824, 18240, 21166, 22280, 24320, 26736, 31749, 33420, 35648, 36480, 42332, 44560, 52915, 53472, 63498, 66840, 71296, 72960, 84664, 89120, 105830, 106944, 126996, 133680, 142592, 158745, 169328, 178240, 211660, 213888, 253992, 267360, 317490, 338656, 356480, 423320, 427776, 507984, 534720, 634980, 677312, 712960, 846640, 1015968, 1069440, 1269960, 1354624, 1693280, 2031936, 2138880, 2539920, 2709248, 3386560, 4063872, 5079840, 6773120, 8127744, 10159680, 13546240, 20319360, 40638720]

約数ペア:

[(1, 40638720), (2, 20319360), (3, 13546240), (4, 10159680), (5, 8127744), (6, 6773120), (8, 5079840), (10, 4063872), (12, 3386560), (15, 2709248), (16, 2539920), (19, 2138880), (20, 2031936), (24, 1693280), (30, 1354624), (32, 1269960), (38, 1069440), (40, 1015968), (48, 846640), (57, 712960), (60, 677312), (64, 634980), (76, 534720), (80, 507984), (95, 427776), (96, 423320), (114, 356480), (120, 338656), (128, 317490), (152, 267360), (160, 253992), (190, 213888), (192, 211660), (228, 178240), (240, 169328), (256, 158745), (285, 142592), (304, 133680), (320, 126996), (380, 106944), (384, 105830), (456, 89120), (480, 84664), (557, 72960), (570, 71296), (608, 66840), (640, 63498), (760, 53472), (768, 52915), (912, 44560), (960, 42332), (1114, 36480), (1140, 35648), (1216, 33420), (1280, 31749), (1520, 26736), (1671, 24320), (1824, 22280), (1920, 21166), (2228, 18240), (2280, 17824), (2432, 16710), (2785, 14592), (3040, 13368), (3342, 12160), (3648, 11140), (3840, 10583), (4456, 9120), (4560, 8912), (4864, 8355), (5570, 7296), (6080, 6684)]