211979960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:301

約数の個数: 128

約数和(自身を含む): 534643200

約数和(自身を除く): 322663240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 67, 76, 92, 95, 115, 134, 152, 181, 184, 190, 230, 268, 335, 362, 380, 437, 460, 536, 670, 724, 760, 874, 905, 920, 1273, 1340, 1448, 1541, 1748, 1810, 2185, 2546, 2680, 3082, 3439, 3496, 3620, 4163, 4370, 5092, 6164, 6365, 6878, 7240, 7705, 8326, 8740, 10184, 12127, 12328, 12730, 13756, 15410, 16652, 17195, 17480, 20815, 24254, 25460, 27512, 29279, 30820, 33304, 34390, 41630, 48508, 50920, 58558, 60635, 61640, 68780, 79097, 83260, 97016, 117116, 121270, 137560, 146395, 158194, 166520, 230413, 234232, 242540, 278921, 292790, 316388, 395485, 460826, 485080, 557842, 585580, 632776, 790970, 921652, 1115684, 1152065, 1171160, 1394605, 1581940, 1843304, 2231368, 2304130, 2789210, 3163880, 4608260, 5299499, 5578420, 9216520, 10598998, 11156840, 21197996, 26497495, 42395992, 52994990, 105989980, 211979960]

約数ペア:

[(1, 211979960), (2, 105989980), (4, 52994990), (5, 42395992), (8, 26497495), (10, 21197996), (19, 11156840), (20, 10598998), (23, 9216520), (38, 5578420), (40, 5299499), (46, 4608260), (67, 3163880), (76, 2789210), (92, 2304130), (95, 2231368), (115, 1843304), (134, 1581940), (152, 1394605), (181, 1171160), (184, 1152065), (190, 1115684), (230, 921652), (268, 790970), (335, 632776), (362, 585580), (380, 557842), (437, 485080), (460, 460826), (536, 395485), (670, 316388), (724, 292790), (760, 278921), (874, 242540), (905, 234232), (920, 230413), (1273, 166520), (1340, 158194), (1448, 146395), (1541, 137560), (1748, 121270), (1810, 117116), (2185, 97016), (2546, 83260), (2680, 79097), (3082, 68780), (3439, 61640), (3496, 60635), (3620, 58558), (4163, 50920), (4370, 48508), (5092, 41630), (6164, 34390), (6365, 33304), (6878, 30820), (7240, 29279), (7705, 27512), (8326, 25460), (8740, 24254), (10184, 20815), (12127, 17480), (12328, 17195), (12730, 16652), (13756, 15410)]