285735680

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:450

約数の個数: 144

約数和(自身を含む): 745651200

約数和(自身を除く): 459915520

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, 248, 256, 304, 310, 320, 379, 380, 496, 589, 608, 620, 640, 758, 760, 992, 1178, 1216, 1240, 1280, 1516, 1520, 1895, 1984, 2356, 2432, 2480, 2945, 3032, 3040, 3790, 3968, 4712, 4864, 4960, 5890, 6064, 6080, 7201, 7580, 7936, 9424, 9920, 11749, 11780, 12128, 12160, 14402, 15160, 18848, 19840, 23498, 23560, 24256, 24320, 28804, 30320, 36005, 37696, 39680, 46996, 47120, 48512, 57608, 58745, 60640, 72010, 75392, 93992, 94240, 97024, 115216, 117490, 121280, 144020, 150784, 187984, 188480, 223231, 230432, 234980, 242560, 288040, 375968, 376960, 446462, 460864, 469960, 485120, 576080, 751936, 753920, 892924, 921728, 939920, 1116155, 1152160, 1503872, 1785848, 1843456, 1879840, 2232310, 2304320, 3007744, 3571696, 3759680, 4464620, 4608640, 7143392, 7519360, 8929240, 9217280, 14286784, 15038720, 17858480, 28573568, 35716960, 57147136, 71433920, 142867840, 285735680]

約数ペア:

[(1, 285735680), (2, 142867840), (4, 71433920), (5, 57147136), (8, 35716960), (10, 28573568), (16, 17858480), (19, 15038720), (20, 14286784), (31, 9217280), (32, 8929240), (38, 7519360), (40, 7143392), (62, 4608640), (64, 4464620), (76, 3759680), (80, 3571696), (95, 3007744), (124, 2304320), (128, 2232310), (152, 1879840), (155, 1843456), (160, 1785848), (190, 1503872), (248, 1152160), (256, 1116155), (304, 939920), (310, 921728), (320, 892924), (379, 753920), (380, 751936), (496, 576080), (589, 485120), (608, 469960), (620, 460864), (640, 446462), (758, 376960), (760, 375968), (992, 288040), (1178, 242560), (1216, 234980), (1240, 230432), (1280, 223231), (1516, 188480), (1520, 187984), (1895, 150784), (1984, 144020), (2356, 121280), (2432, 117490), (2480, 115216), (2945, 97024), (3032, 94240), (3040, 93992), (3790, 75392), (3968, 72010), (4712, 60640), (4864, 58745), (4960, 57608), (5890, 48512), (6064, 47120), (6080, 46996), (7201, 39680), (7580, 37696), (7936, 36005), (9424, 30320), (9920, 28804), (11749, 24320), (11780, 24256), (12128, 23560), (12160, 23498), (14402, 19840), (15160, 18848)]